Can some Hlp me ><" ? Im in love with a girl and ....?

Im a 16 years old .. im in love with a girl in my cl.. I've been thinking about her lately . . . sometime she look at me , but ... im freakin SHY !! when she look at me i feel like my heart gonna POP out ! ! we never talk before .. and when the Test Result came out i got a pretty high score at my cl and she look at me and clap her hands !! and i hav no idea wat to do !! coz this is my first time in love with anybody ! ! And any IDEAS how to start a conversation with her without getting REJECT or IGNORE or BORING TOPICs >>???<< HLP !