[ Singles & Dating ] Open Question : Ok dudes, tell me what to do.....?

I like this guy but I dont know if he likes me. I really wanna be friends with him though, we were just ..idk not friends until he started continuosly commenting me on FB. Anyway, I might see him Monday at a a show. The show is a local metal show and I dont know what to wear cause I DO wana impress this guy!! Should I wear shorts? I just dont know, I usually dont go to shows to impress guys lol but I want him to think im cute.. SERIOUS answers. Pease and Thanks