Most track organizations will have different groups for your level, beginner, intermediate, and advanced.
When I was in the beginner group I thought they did a great job in explaining the safety and etiquette of track driving.
Also, everyone on the track is usually pretty aware. It was scarier driving home on the freeway with so many people on their cell phones not paying attention.
Just don't drive beyond your abilities or comfort zone. Remember, you're just trying to have fun in a safe environment, no prize for finishing first.