Regardless of your opinions on the topics of TED talks, they stand as fantastic lessons on compelling public speaking. I’ve generalized a few concepts here that I hope will help you during your next leadership speaking opportunity, regardless of the size or location of the audience.
Start with why: Simon Sinek
Get “out of the screen” with props or interactive questions: Tristram Stuart
Make it personal and live your “call to action” (tied): Tony Robbins and Tim Ferris