Fellow speaker,
Adding in visual aids bumps up your presentation power! If you just go out onstage and speak, you can lose your audience in the details. However if you show the audience your idea, they can quickly catch on. So for your next "complex" presentation, think about what it is you are talking about to your audience, then find something that symbolizes what you are talking about. Refer to it (and show it) often in your speech and you'll keep your audience involved and interested.
Showing off,
Tim
