lol sorry for laughing.
First off does she like you? If she doesnt like you then I doubt its going to happen. If you feel that she does like you then you need to either:
A. Lay it on the line.
Tell her how you feel, girls like sobby shit. Tell her how beautiful you think she is and how she makes you feel. You cant act all fuckin weird and nerdy though you need to approach her like a man.
personally this is your best bet.
B. play games with her. Hint that you like her but dont actually tell her. Give her little giftss and shit if you want to. This is the middle school approach though and I wouldnt do this one.
goodluck either way.
PS dont be shy that can seriously ruin good oppurtunities ESPECIALLY when it comes to sex.