The truth is: you don’t!
Understandably, people are nervous about being interviewed on camera. In fact, if you are currently running for prime minister and you’re about to interviewed by Jon Snow live on Channel 4 about NHS job cuts, well, yes – you SHOULD be nervous. But if it’s an interview about your company for a promotional video – just relax. Deep down, you know your stuff and any good interviewer will help you ease into it and simply talk.