how to talk to this girl?

[Retro]

Don't be too nervous and don't act like you're putting a lot of thought into the conversation. That will make it seem you are really forcing the conversation and will make it awkward. Just notice something she did, make a cute drawing or say a funny joke. Go up to her and compliment her on that to break the ice. Maybe ask if she like's to draw, etc. (whatever the subject you broke the ice is best) Soon, you'll be great friends, and maybe more!