here are some tips:
- do your homework before you go, i.e. learn basics of how gear shifting works
- get proper gear with yourself, you might not find a good fit helmet there - last thing you want is an aching head
- carry plenty of fluid and food with you, it would be a long day
- pay attention, listen and see what exercises are asked to perform
- don't hesitate to ask questions
- sooner you master gear shifting [up and down] more confident you shall be
good luck !