Final answer:
During an open house, an agent conducting the event should check in with the office or a buddy every 15 minutes to ensure safety, provide assistance, and gather feedback.
Step-by-step explanation:
The agent conducting an open house should check in with the office or a buddy every 15 minutes. This allows for regular updates and ensures the agent's safety. It also allows them to provide any necessary assistance to potential buyers and gather feedback from visitors during the open house.