Panel discussion gamification
Gamify panel discussions, Survivor-style. Ask the audience to periodically vote panelists off the “island” until only one panelist remains.
More types of activities
Conference takeaway
What overarching impression did the conference make on participants? Ask the audience to provide feedback.
Team goal visualization
Ask your team to specify where focus is needed, so they'll be more likely to direct future actions toward that focus.
Sales pitch showdown
Hold a sales competition, then ask the audience to choose the team that gave the best sales pitch.