Well, anyone who's friendly with me! If I may say so myself, I think I'm fairly easy to get along with so I've got quite a few friends, but I'm such an oddball that finding someone I can really engage in a conversation about a subject I'm really enthusiastic about is rare!
I was pretty non-discriminatory in my youth (boys, girls, snails, you name it

) but most of my good friends at home now are straight males (though some of my best friends are anything, its pretty mixed), whereas most of my good friends at university are straight/bi females and gay males. It makes for an odd dichotomy because I'm visiting home a lot at the moment. :/ I don't know that I know any transpeople outside of the internet. Interests-wise, they're generally pretty childish, fond of Pokemon and don't talk about relationships all the time. As for the other stuff, I can't really be picky (for reasons why see my interests list)! I can say that they're all pretty eccentric though (and I love them for it).
I do find though that I can't really talk for long to very girly girls or really macho guys. They just baffle me! When I came back yesterday after a weekend at home my ultra-macho flatmates said "That weekend was awesome. 2 days, 2 fights!" and preceded to discuss the details of these drunken fights for the next half an hour while I wore this expression:

I just don't understand them...
P.S. Hobbies/interests: bad sci-fi movies/books (eg. Yor: The Hunter From The Future, Turkish Star Wars and any book by Guy N. Smith), YouTube, animals (spouting about and care of), drama (as in acting and stagecrew, I prefer stagecrew), and I play basketball and/or nintendo games with my friends at the weekends I'm home. I can play guitar, but don't as often as I should. I'm also enthusiastically setting up my spare fishtank at the moment because my krib is picking on my corys too much and has given them fin rot... and if you understood that, you're as much of a fish geek as I am.