This is the most important lesson about public speaking, or in fact, about life - that you have to be you. Emulation of others is a good start but ultimately, you have to let go and be yourself.
Jeff Adshead
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And if you enjoy Ze Frank, here are some of my other favorites:
If you're confused about what it means to 'be yourself', Ze ... won't make it any clearer:
Ted Talk: Ze Franks Web Playroom.
Ze and Rainn Wilson answering the question about why being a Teen is so hard.