“When you’re young and you’re stupid you think you have to shout to make people hear you,” he explains in his audio commentary . But when he was 19 or 20, he was told that “everyone is listening, you don’t need to shout at them”. This stuck with him, as he realised “it’s what you say that matters, not how loud you say it”. Taken at the offices of http://www.rocketcomms.net in Southwark, London.