Latest / Video Marketing with Fexingo: Short Form, Long Form, and Video-First Strategy / Why Video Thumbnails Need a Face to Boost CTR
Transcript
- Lucas: So there's a stat that's been bouncing around my head all week, and it's about something we all scroll past a hundred times a day: the video thumbnail. A study from a couple of years back found that adding a human face to a thumbnail can lift click-through rate by about thirty-two percent. Luna: Thirty-two percent, that's huge. But is it just about having a face, or is it more about what that face is doing? Lucas: Right, and that's exactly the nuance. It's not just any face. Researchers have found that our brains are wired to lock onto eyes — it's called the face bias, a leftover from our evolutionary need to read danger or safety in others. So a thumbnail with a person looking directly at the camera can trigger a kind of subconscious engagement before the rational brain even gets involved. Luna: So it's like the thumbnail version of eye contact. But I've also seen thumbnails with faces that feel super fake, like a stock photo of a guy with a forced smile. Do those work too? Lucas: That's the catch. The face has to feel authentic or at least match the energy of the content. There's a skincare brand we looked at — let's call them DermaGlow — they tested two thumbnails for the same video. One was a clean product shot, the other was a close-up of a woman with a surprised expression holding the product. The face version got almost double the clicks. But when they tried a stock photo with a generic smile, the click-through was no better than the product shot. Luna: So the expression matters a ton. A surprised face signals something unexpected, which is basically a promise of surprise in the video itself. Lucas: Exactly. And that's a key principle: the thumbnail should be a mini-poster for the emotional payoff of the video. If the video is about a big reveal or a dramatic transformation, an exaggerated expression works. If it's a calm how-to, a neutral, friendly face works better. Luna: And what about placement? Because most people watch on mobile, right? So if the face is on the right side, it might get cut off in some layouts. Lucas: Yeah, that's a great point. On mobile, the bottom right corner is often covered by the video length overlay or the channel icon. So the face — especially the eyes — should be in the upper third or centered. I've seen tests where moving the face from the bottom to the top of the thumbnail boosted CTR by fifteen percent just by making the eyes visible in the feed. Luna: Fifteen percent from a simple move. That's the kind of detail most people overlook. Lucas: Look, this is the kind of thing we talk about all the time on this show — small, concrete tweaks that have outsized impact. And it's also why we keep this show ad-free. We're not selling you anything; we just want to share what actually works. If you've gotten value from these conversations, and you want to help us keep it that way, the link is buy me a coffee dot com slash fexingo. No pressure, it's just a way to support the work. Luna: Yeah, we really appreciate anyone who does that. It helps us keep doing the deep dives without any sponsor noise. Lucas: Back to faces — let's talk about the food channel. There was a cooking channel that tested a thumbnail of the finished dish against one of the chef mid-laugh with a flour-covered apron. The chef's face thumbnail got forty percent more clicks, and the completion rate was higher too. Viewers were more curious about who this person was. Luna: So it's not just about click-through, but also about setting the right expectation for the video itself. If the face matches the vibe, people stay longer. Lucas: That's the long-term play. You don't want a thumbnail that promises something the video doesn't deliver. That's the classic clickbait trap. The face has to be a genuine preview of the content. Luna: What about short-form vs. long-form? Does the face rule apply differently on TikTok or Reels compared to YouTube? Lucas: For short-form, the thumbnail is less visible — the first frame is often what shows up in the feed. So the face needs to appear within the first second, and the expression needs to be readable even at a tiny size. For long-form, the thumbnail is the battleground, so the face can be larger and more expressive. Luna: And what about using your own face vs. a model or an actor? Does that change the authenticity factor? Lucas: It can. When you use your own face, there's an implicit promise of personal connection. Brands that are person-led, like solo creators, see higher engagement when their own face is in the thumbnail. But for bigger brands, a consistent face — even an actor — can create a sense of familiarity. The key is consistency and authenticity to the brand voice. Luna: So it's not just about any face, but the right face for your audience. Do you have a rule of thumb, so to speak, for when to use a face vs. just the product? Lucas: My rule is this: if the video is about a transformation or a personal story, use a face. If it's about a pure product spec or a how-to that's more mechanical, a product shot might be fine. But even then, a face can add a human touch that makes it more relatable. Luna: Have you seen any brands that mess this up badly? Lucas: Oh, sure. There was a finance channel that used a thumbnail with a guy screaming in excitement, but the video was actually a calm explanation of index funds. The click-through was high, but the retention was terrible because viewers felt tricked. So they saw the backlash in the comments and had to rebrand their thumbnails completely. Luna: That's a cautionary tale. The face sets an expectation, and if you break that promise, you lose trust. Lucas: Exactly. And that's why I think the future of thumbnails is going to be more about micro-expressions and subtle cues, not just the big, shocked face. As viewers get savvier, they're starting to tune out the exaggerated stuff. Luna: So what's the one actionable takeaway from today's episode? Lucas: I'd say this: before you hit publish on any video, take a look at your thumbnail. If there's no human face, ask yourself if adding one would make the content more approachable. And if there is a face, check that the expression matches the video's actual energy — and that the eyes are visible in a mobile feed. Those two moves alone can make a significant difference in your click-through rate. Luna: That's a solid takeaway. And maybe we'll start seeing fewer over-the-top screaming faces and more genuine, relatable ones. Lucas: That's what I'm hoping for. Next week, I want to dig into how to use faces in thumbnails across different platforms, because the same face on YouTube might behave differently on Instagram. See you then.