Going stealth (ideally) at high school in a couple weeks, please give advice

By ideally I mean, I pass as cis irl and I don’t plan on telling anyone I’m trans so unless I get clocked or something I’ll be stealth. I’m not too worried about being clocked, more about making friends and not being seen as too weird or not like the other guys. Looking for just general advice from other people who went stealth in high school.

I’m also quite short and I imagine friends I make might make jokes about it, how do I respond?