Smile often while talking. Don't interrupt if your date is speaking, avoid all negative talks, and talk of topics that you feel might interest your date. Why not ask in the beginning itself - 'I was feeling apprehensive about what all to talk with you because one has so much to talk about many issues. How about telling me your preferences?' This will break the ice and your date will appreciate your honest and open approach.

Worrying kills whatever chances you have. Rather be confident that you are a desirable person. Count your positive qualities and regain your confidence. Don't ponder over the possible results. Prepare well and put your best foot forward.