TEDYou'd never know it, but Simon Sinek is naturally shy and doesn't like speaking to crowds. At parties, he says he hides alone in the corner or doesn't even show up in the first place. He prefers the latter. Yet, with some 22 million video views under his belt, the optimistic ethnographer also happens to be the third most-watched TED Talks presenter of all time. Ironic for an introvert, isn't it?