The advice is everywhere. Post consistently. Show your face. Let people see the real you. Get on video. The algorithm rewards authenticity. Just show up.
It’s not wrong, exactly. It’s just incomplete in ways that matter a lot depending on who you are.
This post is about what the research actually says — about algorithms, about human judgement, about what trust is and where it comes from. And at the end, some questions to help you figure out what will actually work for your specific situation, rather than the hypothetical business the advice was written for.
The platform problem
Start with the infrastructure, because it’s the part that’s least about you and most worth understanding before you make decisions about your marketing.
In 2024, researchers at the University of Illinois published a study on Instagram’s recommender system. What they found was that the algorithm doesn’t amplify diversity — it amplifies convergence. The system promotes a narrow set of facial types: what the researchers call “the Instagram face.” The more a face matches that template, the more the algorithm distributes it. The further a face sits from that template, the less reach it gets, regardless of the quality of the content attached to it. This isn’t a side effect. It’s how popularity-integrated recommender systems work — they feed back what’s already winning, which means they encode and accelerate existing beauty hierarchies rather than disrupting them. (Smith, Wang, Salge & Shin, SSRN, 2024)
The same year, Riccio and colleagues published research in Social Media + Society on what beauty filters actually do to faces. The finding was direct: filters consistently lighten skin tone and whiten faces, regardless of the person’s actual race. The “beautified” version of a face is more likely to be classified as white. The tool designed to make you more camera-ready is, in practice, a tool designed to make you look less like yourself and more like the template the algorithm already rewards. (Riccio, Colin, Ogolla & Oliver, Social Media + Society, 2024)
And it doesn’t stop at race. In March 2025, Rauchberg published research in the Journal of Gender Studies coining the term “algorithmic ableism” — the finding that platforms like TikTok suppress disabled creators’ content not as a glitch, but as a logic. The platform architecture encodes long-standing assumptions about who belongs in public life, and those assumptions are enforced through recommendation and moderation systems before a human reviewer ever sees the content. (Rauchberg, Journal of Gender Studies, 2025)
What this means, taken together: the advice to show your face assumes a level playing field that doesn’t exist. For some people, showing up consistently on camera will grow their reach. For others — fat women, Black women, visibly queer people, disabled people, people of colour — the platform will actively work against the distribution of that content, regardless of quality, regardless of effort, regardless of how authentically they show up. The penalty isn’t for being inauthentic. It’s for existing.
This is worth knowing before you decide what your marketing looks like. It doesn’t mean don’t show your face. It means make that decision with accurate information rather than the assumption that consistency and courage are all that’s required.
The human problem
But the algorithmic bias is only one layer. Before you even get to the platform’s decision about who to distribute, there’s the human decision about who to trust — and that process has its own well-documented structural problems.
In 2006, Willis and Todorov published a study that has been replicated and extended many times since. They showed participants photographs of unfamiliar faces for 100 milliseconds — one tenth of a second — then asked them to rate trustworthiness. Those snap judgements correlated highly with judgements made by participants given unlimited time. And here’s the part that matters for anyone thinking about showing their face more consistently: increasing the exposure time didn’t change the ratings. It only increased the rater’s confidence in the judgement they’d already made. (Willis & Todorov, Psychological Science, 2006)
What this means in practice: showing your face more often doesn’t build trust incrementally. It builds familiarity — which increases the confidence people feel in the assessment they formed the first time they saw you. If that first assessment is working in your favour, more visibility helps. If it isn’t, more visibility doesn’t fix it. It just makes people more certain of their original position.
And that first assessment is not neutral.
Research published in Nature Scientific Reports found that across a global sample of 4,580 participants, raters consistently judged faces from their own ethnic group as more trustworthy than faces from other groups. The bias was present across all ethnicities tested. It wasn’t about prejudice in the conventional sense — it was about in-group familiarity encoding as trustworthiness, automatically, below the level of conscious reasoning. (Scientific Reports, 2022)
Earlier research found that pro-white implicit bias predicted judging white faces as more trustworthy than Black faces — and this was true regardless of the rater’s own race or explicitly stated beliefs. The bias operated at a level that bypassed conscious values. (ScienceDaily, 2011, reporting on University of Toronto research)
None of this means your face is a liability. It means the assessment people make of a face in the first moment of seeing it is shaped by forces entirely outside your control — forces that have nothing to do with how good you are at what you do, how warm you are, how consistently you show up. The “just show your face and let people get to know you” model assumes that the face-to-trust pathway is open and level for everyone. The research suggests it isn’t.
The likability trap
There’s a further problem with the show-your-face model that doesn’t get discussed enough, and it’s this: even when the pathway is relatively open, likability and trust are not the same thing.
The show-your-face argument is, at its core, a likability argument. If people can see you, they’ll feel like they know you. If they feel like they know you, they’ll like you. If they like you, they’ll trust you. If they trust you, they’ll buy.
That chain has real validity for certain types of businesses. But it has a significant weak link: liking someone is not the same as trusting them to do something well.
Think about the people you like most in your life. Now think about whether you’d hire all of them as your accountant, your lawyer, your business advisor. Likability is about warmth and familiarity. Trust — specifically the trust that precedes a purchasing decision for a skilled service — is about something different. It’s about competence. It’s about evidence that someone can actually do the thing.
The research on what drives purchasing decisions in service businesses is consistent on this point. What actually converts isn’t familiarity — it’s what researchers call cognitive trust: the belief, based on evidence, that someone is able and reliable. Affective trust, which is the warm feeling that comes from feeling known, matters too — but it matters more for repeat purchases than for first ones, and it matters more in commodity markets where the offering is similar across providers. In a market where expertise is the differentiator, competence evidence outweighs familiarity. (Wang & Chan-Olmsted, Journalism & Mass Communication Quarterly, 2024)
The further problem is that likability, even when it’s working, can actually delay purchase decisions. Someone who enjoys your content, feels warmly toward you, looks forward to your posts — that person may follow you for two years without buying anything, because the relationship is complete as it is. The content is the product. The warmth is the reward. There’s no gap for the purchase to fill.
Whereas someone who reads your work and thinks: this person understands something I don’t, and I need what they know — that person has a reason to move.
Three kinds of trust, and why the difference matters
If you take one thing from this piece, let it be this: trust is not one thing. It has at least three distinct forms, each built differently, each converting differently.
Familiarity trust is what the show-your-face advice builds. It’s the sense of knowing someone, recognising them, feeling comfortable in their presence. It’s real and it has value — but it converts most reliably in businesses where the relationship itself is a significant part of what’s being bought. A yoga teacher, a therapist, a birth worker. Where the client will be in a room with you, or emotionally vulnerable in front of you, familiarity trust matters enormously. The face, the voice, the physical presence in video form — these all serve a real function in that context. But in businesses where the work is delivered at arm’s length — through a document, a product, a service performed without the client present — familiarity trust is a weaker conversion mechanism than it looks like.
Competence trust is the belief that someone can actually do the thing. It’s built through demonstration: writing that shows how you think, work samples that show what you produce, analysis that proves you understand something at depth. It’s the thing that makes a potential client think: she knows things I don’t know, and that is the gap I am paying to close. This is the form of trust that converts most reliably in knowledge and service businesses, and it is almost entirely faceless. It doesn’t require your face. It requires evidence of your thinking.
Values trust is the slowest to build and the most durable once built. It’s the sense that someone holds the same line you do — that their priorities, their ethics, their vision of what good work looks like are aligned with yours. It converts most reliably for businesses with a strong point of view, where the client isn’t just buying a service but buying into a way of doing things. Values trust is built through consistency over time: the positions you hold, the work you decline, the thing you refuse to compromise on even when it would be commercially easier. It builds faceless, in writing, through decisions made in public.
Most businesses run on some combination of all three. But the distribution varies — and knowing which form of trust does the most work in your specific business will tell you a lot about where to put your energy.
The questions that actually matter
Rather than deciding whether to show your face, here are the questions worth sitting with.
What does my client actually need to trust before she’ll buy?
Is she trusting that she’ll enjoy spending time with you? That you’re competent to solve her problem? That you share her values and won’t lead her somewhere she doesn’t want to go? The answer tells you what kind of trust you need to build, and whether your face is the most efficient route to building it.
Where does my client gather, and what does she respond to there?
The platform shapes what works. Long-form thinking converts differently on LinkedIn than on Instagram. A community Facebook group rewards relatability and real moments. A blog with depth and citations rewards a different kind of reader — one who is further along in the buying decision and needs evidence, not connection. Where your ideal client actually is matters more than the generic advice about what performs.
What is the actual trust gap between where someone first encounters me and where they decide to buy?
Not every client has the same journey. Someone who was referred by a trusted peer has already cleared a significant trust threshold. Someone who found you through a cold post in a group is at zero. The trust-building work required is completely different. Knowing the typical entry point for your clients tells you what kind of trust content to make.
Is my business one where the face-to-trust pathway is likely to be working in my favour?
This is the uncomfortable question. Given what we know about how snap facial assessments work — the speed at which they form, the in-group biases embedded in them, the algorithmic penalties that compound them — is consistent face visibility likely to be building the reach and trust you need? You may not be certain of the answer. But you deserve to be asking the question.
What evidence of competence am I putting into the world?
Not evidence of warmth or consistency or effort — evidence that you understand something at depth and can apply it. A piece of analysis that goes somewhere nobody else went. A diagnosis that names the real problem when everyone else is dancing around it. A point of view, held consistently, that proves over time that you know what you’re doing.
What faceless trust actually looks like
None of this is an argument against showing your face. It’s an argument for knowing what you’re actually trying to build, and choosing your methods accordingly.
For the record: here is what builds competence and values trust without depending on visibility.
Writing with a point of view. Not content. Writing. The difference is that content is produced for an audience; writing is produced because you have something to say. Content can be detected immediately as instrumental. Writing that teaches something real, takes a real position, follows a real line of thinking — that builds trust that converting face-content rarely achieves. And it’s permanent. A piece of writing published today is still doing trust-building work in three years. A reel from three years ago is invisible.
Specific, attributable testimonials. Not “she was amazing to work with” but the specific thing that changed, in the client’s own language, attributed to a real person with a real business. The specificity is the evidence. Vague praise is not trust-building; it’s noise. A testimonial that names the actual problem that got solved, in language the reader recognises from their own experience, is one of the most powerful trust mechanisms available to a small service business.
Work samples that show the thinking, not just the outcome. The before and after of a strategic decision. The reasoning behind a recommendation. The thing you saw that your client hadn’t seen. This is competence made visible without your face in it — and for many buyers, it’s more convincing than any amount of showing up.
Transparency about what you won’t do. The line in the sand that you hold regardless of the commercial pressure to cross it — stated publicly, clearly, without apology. Values trust is built by demonstration, not declaration. Saying “I care about integrity” is worthless. Saying “I don’t work with weight loss businesses” and holding that line when a well-funded one comes knocking — that is values trust in action.
Consistent, specific positions held over time. Not hot takes. Not opinions manufactured for engagement. The thing you actually believe, said repeatedly across time in different contexts, with evidence and reasoning attached. The client who encounters your position six months ago and again today, and sees it’s the same — that’s trust. Consistency is the evidence that the position is real.
The “show your face” advice isn’t wrong for everyone. For some businesses, face visibility is exactly the right mechanism, and the research on parasocial connection and familiarity trust supports its value in the right context.
But it was written for a specific kind of business — one where the face-to-trust pathway is open, where the client relationship is central to the product, where the founder’s personality is a significant differentiator. It wasn’t written for everyone, and the platforms it assumes are not neutral ground.
You are allowed to know this before you decide what your marketing looks like.
The question isn’t whether to show your face. The question is: what does trust actually look like in your business, and what is the most efficient way to build it?
Answer that question from your own situation, not from the assumption that everyone’s situation is the same.