How can i get to know/attract/start talking to this girl?

She is kind of shy but she dosnt dress very shy, she definitely shows what shes got, shes not a total slut though. I know she dosnt have a boyfriend and shes not very cool, but shes not a loser. I think shes absolutely goregeous, and i really want to talk to her or something, Please help me out, i really want a girlfriend or even a friend thats a girl. FOr some reason i am really shy at school, my mother was the exact same way, maybe somehting hereditary, idk