Will it catch his attention?

so there's this guy...and he says that i have a good personality, that i'm smart and funny. but he's never given me a hint that he likes me. oh, and we only talk when we're online. a month from now, my friend will be throwing a beach party and he'll be there. i know, cause i invited him. if i wear something cute and flirt at the party, do you think he'll see me more as a friend? i'm working hard to achieve a beach body, but will my efforts be fruitless?