That is a very nice thing to a like another person. Sexual orientation doesn't matter.
he asks him out ^_^
you ask him
Are you gay? If you are.. then go out?? if not..
Another guy will express interest in you by talking to you, smiling at you, winking, perhaps stealing glances at you, etc. === ===
you ask him
If they want to kiss you
The only way to know is to ask her.
Kiss him.
Are you a female? Just ask him if he likes you.
Well. the answer goes with the same "how do you know If a guy likes a girl" question. They will flirt, hold hands, and if they're really gay, Kiss. But dont be mean to them. please? I am NOT gay, by the way!
ummm ask him?
If he likes the girl who likes him, then yeah.