When he stares at you and treats you and differently than anyone else, then that may be a sign, he may ask you out sooner or later, but you can never be sure when, if he is shy, maybe you have to make the first move, but most guys like to play it cool, and migh not ask you out right away, usually the guys who ask you out right away only care about your physical appearence, watch out for those.
You ask the guy.
you ask him
Ask him!
dont be shy and ask him if he likes you?
Ask someone to ask him about you.
Either you ask him or he tells you.
Ask him
Ask him.
ask him and see if he likes you
ask him what he likes to do for fun
well if you know he like you why don't YOU! ask him OUT!
The only way your going to know if this guy likes you is ask him.