I need urgent hlp!!!!!!?

i have a crush on a gal...............but d problem is that she has this repo of not talking to guys!!!she is pretty i dont know what should i do!!she is even smarter than me ...............i dont know how to know whether she likes me or not!!i am afriad of going and asking her anything.........as a have a shy nature towards gals!!plz tell me how should i know how she feels about me?????reply gast