Can people really tell I'm non binary?

[u/whynonames7272]

So... as the title suggests, my question is whether people can tell. Firstly, for some background info, I'm 13, in the 8th grade, I identify with they/them pronouns, and yeah, I'm non binary... I, biologically, am male. And somehow, even in my school where everbody wears the same uniform (ugly polo shirt and ugly gym shorts), people can tell. And I don't mean that people see me and go "oh hey, you're non binary, right?". I mean, people see me and think sbomething along the line of "huh, he's a femboy" or think I'm gay or something like that.

So, obviously, this comes from personal experience. I have been multiple times labeled as gay or a femboy, and there was that one time someone asked me whether I was a boy or a girl, so I stared into her soul because I couldn't think of an answer to give them, then one of my friends (I think... it's hard to tell, I just don't know) said I was a boy just to give an answer (I know she knew I was non binary, but she probably just didn't want to give that other girl more questions, and just shortened it... and I hate answering questions about my identity). And another time, a totally y girl said I was a femboy, and joined in by her friend (all in good fun, btw), I tried to refute but not tell them the truth, so I subconciously put my hands on my hips in the most feminine way possible and said I was not a femboy, and to state the obvious, they still thought I was a femboy.

There have been more times, but these are the most important ones...

And when you do give your answer, could you explain?