At a SHRM mega-session years ago while speaking on the topic of executive presence, I included an audience demonstration about the body language aspect of presence. A little nervous because I’d not tried the experiment previously, I asked two volunteers to join me on stage to demonstrate a few principles of personal presence. What if nobody volunteered before such a large crowd? What if the volunteers were so timid that I couldn’t help them? What if they were already so strong that I couldn’t think of anything to increase their impact?