well that is a good question but the best thing you can do is meet up
if you dont get to see him then get over it
to be honest i think a casual "hey" would be best if you like this guy, if its someone you've never met ask them who it is and then do whatever your instincts tell you.
You can start a conversation with a guy you like and just met pretty easily. First try smiling and just being friendly. Then internet contact is the easiest. You can even try being friends with his friends.
Yes, it is very possible to like a guy/girl that you have never met in person.
Ask him "do you like me?"
get 2 know the guy more.
Get to know the guy you've never met, then go for him if you like him. Unless, while you're with that guy, you realize that you want the one you've had drunken flings with. Then go for that one. lmao this is a weird question (:
he seemed like a nice guy when i met him
Ask for advice on the internet.
You could try internet stalking using the information you DO know about him. The more you know, the easier it will be.
Everytime a guy gives you attention, it does not mean that he likes you.
If you are a girl, probably not. You may have not met the right guy yet. If you are a guy, probably not.