Hrm the old Gaydar question. Well there are a few ways to tell if someone is gay. If he pounds ass is a good indicator. If he wears really short shorts or spends more time in the bathroom then a pregnent lady. Oh and if he wants to give blowjobs to any dude but himself.
I think you can tell if your gay by who your truly attracted to. It's not all about sex or aids, I hate it when people put that stereotype out there! Just think about it who do you stare at the most? I mean lets say your a guy, and a girl comes by in a short skirt, and then a guy comes by with skinny jeans on do you look at the girl? or the boy? I mean it's whatever you are more interested/ attracted to.