bumping, i have the same thing happening to me at work. iv been stretching and doing gay 5 second yoga poses at work fixing gamer posture and carpal tunnel, people around me are doing it, also i like to do little gay spins to move out of peoples way or turn around and its a weird thing i feel like yet so many people at my work are doing it when they weren't before, and i do have friends at work, i usefully just zone out and everyone becomes static to me and i assumed they did the same.
but seeing people do shit i do, it gives me anxiety. i get self-conscious knowing people are watching me. iv been told its because i'm respected at work but fuck, it opened a rabbit hole which fucked me up alot.
I tried googling online, and after months of research i learned a lot of people copy mannerisms, mostly from tv, and i see it all around me. my sisters talk in the same mannerisms from the vh1 drama shows, my goth ex came from an extremely traditional mexican family and she completely transferred her persona based around punk / goth culture once she found out about it and it stuck with her in her mids 20s, look at black culture in general, most black people are cool dont get me wrong but black people specifically have a tone and behavior for some. Even i noticed i started talking like some of the podcast i listened it.
and while you can't read peoples mind or thoughts or tell if they're lying, you can read how people feel, there's common behaviors / things people when they feel a certain way, and learning this fucked me up because now i can tell how people are feeling around me, and i fucking hate it, i dont even look at people in the eyes anymore, i dont wanna know how they feel about me. If you're like me and overthink shit for fun, i suggest not even looking into it.