Do you think people KNOW you're gay, , bi, etc?

I'm in the closet. However, I've never been in a relationship with a guy (and I'm in my 20's). I am not exactly masculine, but I certainly am also not the epitome of feminine. I don't go around feigning interest in men, if I ever do talk hypothetically about a relationship/person I say "they," or "them," ha ha, or "peron" like I just did, I never say "he." Anyway, little things like that. I mean seriously, how can they NOT know I'm a ? I would think they know for sure, but people make comments to me that I would hope they wouldn't make to a gay person (they aren't exactly gay friendly comments). So, do you think people know you're gay?