Attracting guys in the city(its my birthday please help:)?

I turn sixteen today :) i'm going to the city with friends. I'd like to meet new males because the ones in my area aren't very nice. Anyway i can usually attract them, like i'll be walking down the street and me and my best friend will get called good looking, but when guys say that i usually freeze and don't know what to say. Are they just joking or actually interested? What do i do to get talking to them?sted? What do i do to get talking to them?