"What kind of drink can I get ya?"
I'd probably forget to ask them anything pertinent unless it came up in conversation. I'd hate to drill them for answers, I always feel like I am imposing by asking - it's a weird security issue hang up I have and it makes me feel all dorky and shy, which is probably how I'd come across anyway! :P I would just hope if I ever got a chance to meet them, then the conversation would flow like how it does when you start talking with friends or any other person you meet.