So will being tired and foot sore. Staffing your booth Staff your booth with enough sales people to be able to rotate for meals and down time. It is important that your representatives be able to answer inquires intelligently. Nothing will irate a buyer more than asking a question about a product that they are serious about buying and not being able to get an answer. Don't take meals or snacks at your booth.
Food is messy.
Yes, you have to eat. That is why you bring enough people to be able to rotate for down time. Make sure that you enough sales information. But also make sure that it is properly identified with your corporate and contact information for further inquires and follow up. This is especially important if you are a distributor displaying like materials and services to other vendors at the show.