Litle brother bear, you remind me of me at that age. I think the easiest thing to do is just be yourself. Ask a lady to dance, be sure to compliment them and thank them for the dance and see if any further conversation develops and if not, move on to another. Practice makes perfect and the ease to make decent conversation will develop as you go. "Smooth" lines are for players. Just be Bear Bear and you'll be ahead of the game. Like Seriousfun said, confidence and ease with the situation will be the key to meeting some really interesting ladies.

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As to marriage or celibacy, let a man take which course he will. He will be sure to repent - Socrates

Love is not looking in each other's eyes, but looking together in the same direction - Antoine De Saint-Exupery