The tools you use to deliver your presentation can have a huge impact on simplifying this participation. With very few external cables and exposed equipment to clutter the presentation area, there is no complicated equipment to negotiate and no need for audience anxiety about participating. Expression also reduces the number of external cables, so audience members won't be physically hindered by a tangle of wires when coming up to the front of the room. By having participants use intuitive tools when at the front of the room, you lessen the anxiety created by learning something new. The impact of this move is great, however, when he sees that what he has written on the Board is displayed in electronic ink for everyone in the room to see.
Intuitive tools allow simple audience participation to become outstanding audience interaction.