What type of cloths should i wear for him?

ok i just asked a guy out, and last night on facebook and than he asked me too a movie and i said i couldn't tonight, than while we were talking he started using little hearts in his messages.cute right. and than he asked me if i could walk home with him monday, i said yes.now im supper nervous. what type of cloths should i wear?what should i talk about and how can i flirt subtly, i mean i can flirt but they always know.oh yea he acts like this huge player in front of his friends but hes not quite with me alone, but he says he likes my jugs so u know.were both in high school and were doing pretty good in grades well actually im doing great.hes a grade higher than me.please don't judge or something just answer.please if you have any thing that can help tell.