Everyone who wants to participate will receive a fun part to play and will interact with the actors and each other via the chat. They will receive these parts in their chat box during the virtual "cocktail" reception before the show begins. If your guests are late to the party, they may not receive a part to play so make sure everyone plans to be on time!
About 10 or so of your guests will get more involved, on-screen roles where lots of creative, funny, improvisational things will happen. The rest of your guests will be asked to turn their camera's on from time to time for a reaction or cue phrase and will be encouraged to participate via the chat box. They're going to have a great time in their new roles!