Craft Your Mastodon Avatar: The Hexagon Crop and Expression Guide

Why the Hexagon Crop Changes Everything

Your avatar on most platforms is a simple square or circle. It’s a frame you don’t think about. Mastodon’s hexagon is different. It has six sides, not four. This shape actively engages with your photo, cutting into the space around your face in a way that feels intentional, almost architectural. A square avatar sits passively within its border; a hexagon avatar feels like your portrait is emerging from it. The corners are gone, replaced by angles that guide the viewer’s eye directly to the center—to you. It demands a different kind of composition, one where you use the negative space as part of the design, not just dead air to be cropped out.

Think of it this way: a bad square crop just looks like a bad photo. A bad hexagon crop looks like you didn’t know about the hexagon. It screams “I just uploaded my LinkedIn picture.” Getting it right, however, makes you look like you belong there. It’s a small, silent signal that you understand the space you’re in. I’ve watched clients’ faces light up when I show them the hexagon preview on my laptop screen during a session; there’s a moment of “oh, *that’s* how it works,” a click of understanding that changes how they pose for the rest of the shoot.

Uploading and Framing Your Portraze Headshot

So, you have a great professional headshot. Now what? The first step is the upload preview. This is where 90% of people mess up. They see the default circular crop overlay and hit “save.” Stop. Look for the “shape” or “crop” tool. Select the hexagon. Immediately, you’ll see those six sides over your image. Your job is to dance with them.

Position your head so the top flat side of the hexagon cuts across the top of your head, leaving just a sliver of hair or scalp. Not an inch above. A sliver. The bottom flat side should land mid-chest, right around the sternum. This is your canvas. The critical part is the shoulders. You must keep them within the angled sides. If your shoulders are too broad and get clipped by the straight vertical lines of the hexagon, the whole image feels cramped. The goal is to have the angles *just* outside the curve of your shoulders, framing them. A good rule: you should see the entire seam of your shirt or jacket where it meets your shoulder.

The 'Fediverse-Friendly' Expression Formula

What kind of face do you make? This isn’t LinkedIn, where the uniform is a confident, closed-mouth smile directed at an imaginary boardroom. The fediverse values approachability and genuine connection. Your expression needs to invite a conversation, not end one.

Here’s my simple formula: eyes at 90%, smile at 70%. Let your eyes do most of the work. Think of something that gives you a flicker of warm amusement—the punchline of a joke you’d tell a friend, not a client. That feeling will soften your eyes. Then, add a gentle, closed-mouth smile or a slight grin. Not a teeth-baring beam, but the expression you’d have listening to someone you like. I once had a software engineer who gave me nothing but a stern, technical stare for twenty minutes. I finally asked, “What does your dog do that makes you laugh every single morning?” His whole face changed in a second. We shot that. That’s the expression.

Should you smile with teeth? It depends. Can you do it without looking like you’re posing for a dental ad? If yes, a subtle teeth-show can be wonderfully engaging. If it feels forced, stick with the softer approach. The hexagon is already a bold shape; your expression should provide the balance.

The Common Mistake: Cropping Too Close

This is the biggest error I see. People see the hexagon and panic, zooming in until their face fills every pixel. It becomes a mugshot. You lose all context, all breathing room, and all style. The avatar feels claustrophobic and intense.

Ask yourself this: does it look like a passport photo or a portrait? The answer should be portrait. You need that space around you. Specifically, you need what I call the “breathing room buffer.” On all sides between you and the hexagon’s edges, there should be clear, empty background. For the top and bottom, aim for about 10% of the total image height. For the angled sides, ensure you can see the line of your jacket or the curve of your hair before the crop cuts in. This buffer is what makes the hexagon feel deliberate. Without it, you’re just a face in a hole.

I made this mistake myself early on. I cropped a test avatar so close that my hair was sheared off by the top angle. I posted it. For a week, I looked like I was perpetually straining to see over a wall. It was awful. A friend finally said, “You look stuck.” I reframed it with space, and the entire feel changed from strained to open.

Your Final Check Before You Post

Don’t hit save yet. Run down this list. First, squint at your screen. Does your face still read clearly as a friendly, recognizable shape? Good. Second, cover the bottom half of your face with your hand. Do your eyes alone convey a warm, attentive presence? They should. Third, look at the background. Is it clean and uncluttered, or is there a stray plant that now looks like it’s growing out of your ear? Fix it.

Finally, the two-second test. Open the image, look away, then glance back for just two seconds. What’s your immediate, gut impression? “Professional friend.” “Interesting person.” “Approachable.” If you get “corporate” or “tense,” go back to the expression formula. If you get “where’s the rest of them?” go back to the framing. Your avatar is your handshake here. Make it firm, but not crushing; warm, but not overbearing.

Getting this right takes five extra minutes, but it lasts. It tells people you paid attention, that you care about how you show up. That’s what the fediverse is built on. Now go post it.

Related, and worth reading next: Get the Perfect LinkedIn Crop for Lawyers: Square or Circle?.