I’m talking about something called bottled enthusiasm, which sits just below the surface and literally bubbles over as you speak. It’s about enunciating your words with absolute clarity and stressing your consonants so that your words have intensity to them. It’s like you’re talking with your fists clenched, and there’s an active volcano inside you ready to erupt at any second—but of course it doesn’t, because you’re an expert who’s in total control.

