Confidence will look good to anyone. Just walk up to a girl you're already familiar with, and say: "I'm going bowling Saturday with some friends, do you wanna go?"
Just make it as causal as possible... if she says no, then so what? Her loss, you'll find a better one.
OR, go out with friends and if you see a girl(s) you like, invite them to join you (walking around the mall, movie, bowling, mini golf, whatever!)
Good luck
