Help starting a relationship?

okay here is my deal- theres this EXTREMELY HOT GIRL. okay- i mean smoking hot- an ive never ever talked to her-EVER but she has a face book... i friend requested her -she accepted it- and now i want to get this ship sailing through facebook- i have NO time during school to talk to her- but i can on facebook when i get home... i wanna send her a message to get things started! what do i write! i mena she has no idea who i am- but yeah just tell me what to write so i can get this car goin! thanks!