The day you pick up the courage to go up to her and talk to her is the day you will live to celebrate one of your greatest achievements in Life. Simply go up to her with the intention of becoming friends and not lovers and she would not have the chance to say a ' NO' to you. When you become friends, then you can have the opportunity to take the relationship further. Remember, don't let her notice your fears, she is a normal human being and most ladies detest nervous guys. Take care.
gaurav.raj