Hi im 14 in high school. im in love with this chick but im not sure she likes me, imnot sure how to talk 2her?

i have liked this girl from day 1 in high schoolappanrlty she used to think i was cute, but shes very poular and theres alot of compition i have tryed talking to her on msn,and were good talking but at school im too chiken to go to the feild and talk. plz help really llove thiss chick