This boy! .. HELP10 points for sure?

so since ive started school i threw up my hair didnt care! yesterday my friend had a party and i did myself up and everyone was like you look gorgeous and the boy i liked was thre, he was talking to me all night , looking and my firend think he likes me.. i was talking to him n facebook and he stills like another girl and didnt say that he likes me .. what can i do to get him to ask me out? PLEASE long answers.. please .. maybe hard to get ? im not asking him anything tho. and i dont wanta tell him i like him because i dont think he likes me back..