LOL there is no such thing as a good pickup line....at least if the girl is sober. lol and until you develop some serious game don't try to get phone numbers while working at the pumps...flirt with em but don't expect too much more than a smile or a giggle.
Easiest place to meet girls are at parties and school.The most important thing is swagger and confidence. Be self assured in yourself, and cool out. Carry yourself with confidence and girls will always pick up on it (just dont be a cocky asshole). Work humor into conversation but don't try too hard to be funny, and for that matter don't try too hard to be cool or smooth or w/e.

Looks definitely help if you got em, but quite frankly they aren't necessary if you carry yourself properly.