Fellow speaker,
World Champion Speaker Ed Tate, in preparing for giving what would become his world championship speech, gave the same speech over and over again...and only changed one line at a time. Then he got feedback on that line, and, based on that feedback, tried the line differently. And got feedback on the change to that line.
Line by line,
Tim Wilson
Professional Speech Coach
Free speaking tips at http://speakingquicktips.blogspot.com
