The "Circle of Questions" activity is used during a retrospective meeting to encourage team members to reflect on the project's successes, failures and lessons learned. This activity is designed to stimulate open and honest dialogue and provide everyone with the opportunity to ask and answer questions related to the project. By addressing questions related to communication, team dynamics, process improvement, and overall performance, they can identify potential areas for improvement, which can inform future projects. The goal is to foster trust, communication, and collaboration among team members and to ensure the project's success for next time.