Body Language
What you do not say is at least as important as what you do say. Your body is speaking to your audience even before you open your mouth. Your clothes, your walk, your glasses, your haircut, your expression - it is from these that your audience forms its first impression as you enter the room. Generally speaking, it is better to stand rather than sit when making a presentation. Be aware of and avoid any repetitive and irritating gestures. Be aware, too, that the movement of your body is one of your methods of control. When you move to or from the whiteboard, for example, you can move fast or slowly, raising or reducing the dynamism within the audience. You can stand very still while talking or you can stroll from side to side. What effect do you think these two different approaches would have on an audience?