Chances are that you will eat breakfast and so will your clients. Take them to breakfast. Have a product preview. Make it an invitation-only affair. It makes clients feel special and you get some undivided attention.
Most shows are a madhouse at the end of the day.
Getting transportation from the show location to hotels can be a frustrating experience. You may want to consider hiring a bus exclusively for your clients. There is a catch - passes for your bus can only be obtained from your exhibit staff. Another reason for people to come to you. More undivided attention.