From my 30+ years behind microphones and cameras, I know that powerful people are often insecure and can be uncomfortable in their own skin, especially in certain high-stress situations. I can’t tell you how many CEOs, executives, and celebrities sat down with me for an interview and stumbled through it, unable to put a coherent sentence together or even sit still for a three-minute segment, their leg bouncing nervously, while talking about what makes their company or product so great.