it dependes on how he looks at you. if when you catch him lock eyes with him and he smiles he more than likley likes you and I would say go for it. love is an important thing to have theses days.
when he tries to make you laugh...
flirts...
teases...
sorta stupir question. if he does like you it should be obvious!!
Not always and u should use spell check jerky bitch! Fuck u!!!