Have you always been able to speak so fluently on camera, or did you develop it through deliberate effort? Does it have anything to do with the books you read, or did you have to adjust when you first started recording?
Massive action is the real answer. I went door-to-door for about 15 months, talking to 50-80 businesses a day — roughly 20,000 conversations spent articulating a need and then solving it, which is really just the perception of value. Before that I raised money for a child-sponsorship charity, talking to all kinds of people on the street, which forced the same articulateness. That volume of reps built the skill; reading books didn't really make me more articulate. When I first got on camera there was a real “what the hell is going on” period, since there's no person in the room to talk to. But I've come to realize a lot of people talk to themselves out loud when they think no one's around — being on camera is basically the same thing, just seen by tens of thousands of people. Once you stop treating the camera as anything other than talking to yourself, it becomes natural after enough reps.