"The room will always tell you where it is and how it feels." — Aaron Smalls

Aaron Smalls has spent 20 years reading rooms for a living — from his start at Nickelodeon through DJing, acting, hosting the FIFA World Cup coverage in Boston, and now working as the audience warm-up host for The Kelly Clarkson Show. He's built a framework called Charismatic Advantage around the one thing he says every executive is missing on stage: energy, and the discipline to actually read it.

Karl and Aaron get into the backstage moment Aaron humanized a robotic, script-locked speaker in real time before she ever said a word, the acronym he uses to save a talk the second it goes sideways, and the University of Michigan research on "positive relational energy" that explains why some leaders people want to follow — and most just tolerate.

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