1. Hurry up and wait.
There are several classes of cars in a drag race, based upon type of vehicle and speed. The track also has to be kept a certain way. If there's been a wreck or liquid leakage on the track, be expected to wait some time before cars can race again. And, because of the many classes, it may be some time before the cars you want to see will actually race. It can sometimes be two hours or more between the times that Jason races, so there's a lot of waiting periods.
2. Bring your own food.
The tracks I've been to have food for sale, but it's somewhat expensive. And it's the basic stuff - hot dogs, hamburgers, fries, etc. If you don't want to dole out the money on food, you can bring your own. You can even bring a grill to cook your food.
3. Get the free souvenirs.
During the big shows (like World Fuel Altered Nationals) many of the cars will have autographed posters. With the exception of one driver, they've always been free. The drivers are also good about letting you get your picture taken with them.
If you plan to visit the car staging areas, chances are you'll be doing a lot of walking. Comfortable shoes are a must. And, during the end of most races, spectators are allowed to walk the track. It is covered in oil and sticky substances. I learned firsthand that flip-flops are a No Go for walking a track. They can and will stick to the track surface, leaving you to feel like you're a fly stuck in a Venus Flytrap.
Not all of the cars are loud, but a lot of the big ones are. Earplugs are a must if you plan on being able to hear afterwards.
It irritates me to no end that people carelessly throw their trash everywhere. I've never seen a shortage of trash cans at a track, so don't be a lazy bum. Throw your stuff away.
7. Visit the pit area for behind-the-scenes views.
The pit areas are where attenders can talk to and interact with the drivers. Spectators can view the crews working on the cars and see everything up close and personal.
Because the cars are loud, it can sometimes be hard to hear what the announcer is saying. By bringing a radio and turning in to the specific station, you'll be kept up-to-date on happenings.
me and Adam at World Fuel Altered Nationals in Iowa last year
Have you ever attended a drag race? Have any pointers you'd like to throw in?