Now I know a little nerves can be a good thing. It makes you feel pumped up for a shoot. I always get the excited/nervous feeling which is all part of the buzz and enjoyment for me. Share your tips here as I think this would be a great thread for new models,
I always feel that drinking water through a shoot helps ALOT. It keeps you hydrated, which helps you feel relaxed and cool.
All the best
Knowing a little more what you are likely to be shooting via a mood board or getting to see images of where you will be shooting or if going to a location, doing some research on the web so you understand a little more about what you can expect to see hopefully removes some uncertainty and will make you more confident?