Mr. Dan?.
Offer her the latest watchtower and awake.. .
Seriously, lines NEVER work.
Spontaneity is the key.
Confidence is the icing.
Next time you see her:
1. Have an Overall idea of a topic. In your case, let?s say Math.
2. When you see her next time, and want to talk to her..don?t hesitate more than 4 seconds to approach her. This way, you won?t have time to get nervous. And also it prevents you from having a mind conversation of ?what do I say if she says, this and that,? which leads to nervousness.
3. Say whatever comes to mind and take it from there.
5. If she is not responsive, move on to another girl.
Good luck