This is my favorite topic. Here are some of the best lines I love:
3. Are you a magnet, because I?m sooo attracted to you!
6. You look beautiful today, just like every other day.
some genuine ones:
Wow, I saw you and I just had to come over and say hi. I have to say I like your style a lot
Hey, I?ve seen you around [campus], and I thought I?d come over and introduce myself
some cheey ones (from here http://pickuplinesblog.com/ ) -
Hey, I need advice from somebody cool, and you look cool
You?re so beautiful that you made me forget my pickup line.