If you see a girl you want to talk to, go up to her, smile, put out your hand and say:
"Hello, my name is ...".
She will always respond by shaking your hand and telling you her name. It certainly takes courage to do this and she will notice your bravery.
So what next after this smooth introduction? Simple things like, "How is your day going?" or "Are you having a good time?" Make her feel comfortable and get her talking.
Sometimes, when I have felt really brave, I have added, "I saw you over here and justed wanted to say 'hi'". If she is feeling brave she might ask, "So why did you want to come and say 'hi' to me?" If things are going well I respond with "Because you're are so cute..."
