How to talk to this girl and get her number?

So there is this girl that I I lie and I only have her in one class and I seee her during lunch. She doesn't have a lot of friends and she sits right across me in lunch during school. But the problem is is that I don't know how to appraoach her.one thing that I know I have in common with this girl is sports. She plays both basketball and softball. So any ideas on how I can talk to her and when and how to ask for her number?

Bob2016-10-05T20:08:45Z

Slap her food out of her hand and say, "NO NO NO NO". If she doesn't laugh then she doesn't like sports and you have nothing incommon with her.