The document provides instructions for participants attending a webinar on supporting the development of make believe play. It includes a checklist for participants to complete as they go through introductory slides, such as ensuring their audio is working and familiarizing themselves with interaction icons. It informs participants that the chat room will be used by the presenter and moderator during the webinar and for a post-evaluation. Participants are asked to think about how they played as a child and type answers to questions about their favorite game, why they liked it, who they played with, and how it made them feel into the chat box.