You won't learn anything quicker then that. If you are having trouble there is a couple rules you can learn now.

1) Enter groups of people and address everyone, a group will blow you out if you try to just creep on one.

2) Mystery's 3 second rule, if you see a set enter with in 3 seconds of sight. This means you approach before you get self concious and start screwing your head up.

3) Make it natural situational or spontainous. If you are still struggling then you can use canned openers, but try not to use the common ones.

4) Don't hang around like a bad smell, your the catch here. Be prepared to walk away and for them to stop you.

5) Once in change the subject and see where it takes you.

Most important of all though just have fun, be a positive energy that people want to be around.