From my seat in the audience, I’m able to see things that work—and don’t work. I can tell when a speaker is confident, and when they aren’t. I can look around and gauge how interested the audience is. Are they laughing, crying, gasping, or taking notes when they should be? Are they texting instead of listening? When an audience isn’t engaged, it’s not always possible to narrow the cause down to one specific problem. BUT, I have noticed one thing that successful speakers tend to manage better across the board… the way they use their voice.