Damn These Butterflies

I'm a sophmore in highschool and i have a crush on a Junior its a little wierd for me because she is actually the first girl who i have had a crush on~~ One day I was walking down the hallway and we were passing each other it was like magic we stared in each others face for 10 seconds I started to get butterflies in my stomach and turned really really nervous...I have no idea what to do next all we ever do is stare at each other I want to talk to her but i chicken out I know i would get very nervous and the butterflies would set in she is so beautiful in my eyes...I need some advice?.