1. Watch the course, the crew has the best line of sight.
2. Try to keep the boat trim as balanced as possible.
3. Run the foresail.
4. Run the stop-watch, countdowns for starts.
5. Support your helmsman. Smile, make jokes.
6. Double-check all rigging.

Being a crew member is all about being supportive. I think it feels good knowing that someone can rely on me. I also know that the boat I am on is not mine, so I tend not to make opinions unless asked.