I use that as part of recognizing people. Mostly from behind or far away.

'Tis Cinna, I do know him by his gait.

It's a thing!

Do you have aphantasia? This is pretty common among people who do.

Huh, I wonder if that’s partly me …….

• Most people I recognize by “normal” things like faces
• ephemeral people like waitstaff or someone I pass in the street, never get committed to memory
• but some people I can’t distinguish from others, no matter how different. I never knew why but maybe gait

For example there were two kids in my high school. I interacted with at least one of them on most days, so they were familiar. One was much taller than the other, one was brown hair the other black hair, they were in different classes, one was in a club with me the other not. They really had nothing in common that I ever figured out. Yet all four years of high school I could not tell them apart.

I am really bad with names, which may be relevant.