Hydrate Well

Drink plenty of water while you are in the booth. Having dry mouth when you are trying to hold lengthy conversations is not good.

I don't mean you should have bottles of water sitting on the counters, just hide them in the plants or under the counter.

This also gives you a chance to walk to the bathroom and do a little networking on the way.

Another idea is to offer small bottles of water as a booth giveaway. These are readily available through any number of promotional companies.