Do you know the girl? If you do know, strike up a short chat
with her maybe by asking her how's she getting along and where's
she heading, things as such...
But if you don't know her, maybe what you can do is discreetly
noticed what she does often, like reading a book or something,
strike a short note on the same area of interest... "Hi, you like
reading his/her books too? Me too..."
Slowly leadin to your usual chat should be enough...
