Is gaydar a real thing, and can straight people have them?

People say I give off a "gay vibe" and that I "look gay". Im sorry, I wasnt aware that somebody could "look gay"🤣 People assume all the time that I'm gay or at least bi. I have gay friends and in the early stages of our friendships they were like "you say you're straight, but like, are you for real because you seem gay and I can't tell if you're for realsies". I asked "uh how does one seem gay" and apparently I clean up too nicely (appearance wise), I have a "nice face that could go great with a guy or a girl", I give off "switch energy" whatever the fuck that is, gaydars just "go crazy" around me,

and all my friends are girls. Like close friends. I guess people assume we have secret orgys. Any advice on how to appear more heterosexual?

That's me. I don't think I look gay.