You go up to the person with confidence and say "Hi, my names ........, whats yours?
The best way to find someone's AIM screen name is to ask them. If they want you to contact them they will give you the screen name.
Ask him for it.
The only way is to just ask them.
C'ainm atá ort? is used in Ulster Irish.
When you ask the right someone. And no, there's no way to know who that someone is until you ask a bunch of wrong someones. So get to asking!
Ask them.
look them up in the yellow pages, call them, ask them for there Email
A good way to ask a guy subtly if he is interested in you is to send him a note to ask him. A better way would be to just come right out and ask in person because subtlety isn't always the best way to get someones attention when you are interested.
Ask them for it.
Email them and ask them. Unless they don't want you to have it in which case you shouldn't.
you can usually ask your teacher, or even the mailman. ahha. you can even try to get closer yourself and ask. Just be like. i dont remember your name. what is it? and then tell him/ her yours. :)
Ask them, or search for them on Yahoo.