You're creating and auctioning off paintings outside the art school you used to go to in order to keep it from closing down, Harry sees the painting (^^) and catches your eye. after donating tons of money he chats for you a bit and the rest is history! :)

You just happen to run into Zayn on your lunchbreak at work and "oops, did you just spill all your drink, love? let me get you a new one" ;)