Does this girl like me!!! Please!! !!!?

Me and my friend, saw some people staying in a camp near our boarding house so we decided to go over and talk to them ( cuz we don't have anything to do, we live in a shitty all boys boarding house) we walked down and turn out that they're a music group, i ran to get my guitar and played a few songs, some of our gap students blasted their music and we partied with all of our new friends . Suddenly out of the crowd this girl pops out. I immediatly think that shes out of my league. But then she starts looking at me, we hold the stare, she smiles and this repeated about several times. We looked into eachothers eyes, she had the most beautiful smile ive seen. Some of my friends only look at their *** and boobs and stuff like that , i must admit that sometimes i do too. But not this time the only reason why this girl has always been on my mind is her smile and eyes. Thats all that matters I think. The next night me and my friend went over again, the girls came outagain we talked to them and she did the same thing , we kept looking at eachother then looked away and smiled. I gave a note to her friend to give to the girl . all of her friends chuckled and everything, then she came back and talked to me again. I know all of the signs are their but i'm still feeling paranoid. How do i approach this? Does she really like me? Please help me