Five teams entered their robotic waiters into the contest. After a preliminary round to judge the safety of the robots, the robots served conference attendees at the opening reception of the Fourteenth National Conference on Artificial Intelligence. Robots from five teams acted as waiters, serving snacks to the AAAI conference attendees at the opening reception. The robots served a variety of food items, including sandwiches, pretzels, peanuts, and candy. The primary criterion for food selection was that no item could be messy, preventing potential damage to the robotic hardware.