Prepare for an online presentation to fail.
As you did for the previous exercise, plan for one person in another room to present to two or three team members over the web. But this time, imagine that the technology fails. When you begin the presentation, you can see each other, but the audience can't hear you. (Turns out, people on the receiving end had their speakers off-but you don't know that.)
Plan for this to happen, and arrange an alternative (e.g., a speakerphone or a cell phone that has a good speaker). Role-play this situation as realistically as possible. How will the presenter smoothly transition to the alternative?
After the presentation, discuss how well the speaker handled the situation. Discuss lessons you learned for the future.