Just kinda look at her from a distance, then wlk up to her and look her in the eyes and just say hey, give her your name and such, and see what she says. It works for me. It isn't really a pick up line but...
WOW! Kevin! Uselly I just asked if this seats taken and sit one them in hot tubs lol, it did work once which was weird.
But I actually though of one, Just be like you got something on your lips......wait here, I'll get it. I did that twice I got slapped once and made out with the girl the second time. lol