Fellow speaker,
Jeremy Donovan's study of TED talks suggests you can use a shocking statistic or opinion to capture the attention of your audience. The key is the statistic or opinion must trigger a range of emotions in your audience (e.g., "Right now you're doing something that is cutting your life span in half").
Scaring,
Tim Wilson
Professional Speech Coach
Free speaking tips at: http://speakingquicktips.blogspot.com
