The first thing you need to understand is that if a woman likes you, then she's VERY likely to give you her phone number, email address, or whatever. I even know a guy who gets women's addresses and a map to their house when he first meets them. Really. You need to just start talking to women. Walk over to the table, say, "Hi" to one of the girls, and then ask her a few questions about herself. Finally, say "It was nice talking to you... I'm going to get back to my friends." As you turn to walk away, turn back and say, "Hey! Do you have a mobile phone?" If she says "yes", then give her a pen, and say "Write down your number, I'd like to talk to you again." It really is that simple. You need to do that about 100 times in the next month. You'll learn so much that you won't believe it. Do it!