Most Helpful Girl
Most Helpful Guy
First of all if you haven't spoken to her you don't like her romantically. You may like something about her or her physical appearance but don't build up any romantic expectations. She is just another stranger, so start the conversation by making an observation about something you both can see. For example point out a painting on the wall and ask her if she thinks it is paint by number. Or ask if she can hear the song playing, say it reminds you of a time in college when you had to pull an all-nighter and the radio was playing this song on a loop for 3 hours. The main point is to capture her attention by saying something real that is attached to an emotion of yours; it lets her breathe and see if she relates to what you are talking about.