Over facebook since I never talked to the guy AND I am likely never going to see him again.
Something like a movie or a coffee date.
Most Helpful Guy
Over Facebook seems a little crappy in my opinion (not because you're a girl, I generally think Facebook is rubbish). It doesn't come across as sincere in my opinion. Like when couples discuss important relationship matters over text messages... man, what has the world come to. I would only use Facebook if nothing else works. If you know his name, it would certainly be sweeter to look him up, find out where he lives and go by personally. Or maybe find out his phone number. At least I would think that's much nicer.1
Most Helpful Girl
I'd just be friendly and ask him what's up