Girl problems, i need help with this really pretty blonde!!!!1?

oj so im 16 and i like this one girl you and i was gonna ask her to homecoming last week but she was already going with a friend (i found that out by another i didnt ask her). and so its been three days since homecoming i think. and so my friend told her friend that i like her and her friend told her, so she messsaged me on myspace say so i heard you liked me. so i messaged back like where did you hear that? but i havent checked my messages, right now im at school and i need help cuz im not good with talking to girls that i like i get embarrased and turn red, and so i need help talking to her somehow cuz i ride her bus and if i dont talk to her i might mess up my chances in dating her, so can you help me or atleast give me some conversation starters?