The author of The Awesome Human Project and CEO of Happier is a natural at public speaking. Known for her TED talks and corporate speaking engagements, as well as coaching, she’s not one to usually experience stage fright. But she does have a secret to calming nerves before large speaking engagements, which she explains to host Christine Lagorio-Chafkin. First: Don’t tell yourself not to be nervous. Second: Do tell yourself this one key thing.