I'm a long-time broadcaster and much of this is spot on. I stand up all the time behind a microphone...even when I do hour-long programs. No sitting. When you sit, you hunch. You have more energy when you stand. People need to understand that their voice is their signature...learn to use it well, don't try to change it. It's YOU! Learn to use it to its best possible ability. This article highlights some good ones. Thanks.