You don’t. This girl doesn’t owe you her attention or time. If you ever make eye contact with her, and she isn’t giving you eyes that communicate “I think you’re attractive, come over to talk to me” then keep moving, friend. There are a ton of women out there, and many of them are interested in meeting men.

Eye contact. She smiles at you? Game on. She looks away quickly but doesn’t smile? She isn’t into you.