Trouble

Guys? Who new how complicated liking them would be, I mean there is so much to think about. How old are they? Will they treat you right? Do they like you for you? Is sex all they want? And so much more. Well i like a guy if u didn't already know, but i cant tell if he likes me we don't hang out much and when we do it is around other people. This sucks how do you tell when a guy likes you? The thing that really sucks is i don't think he even knows i'm here, that i like him. How do you even tell a guy you like him, I know drop hints but sometimes it seems like they don't even pay attention to them like they don't pay them no mind. What should i do?