To command a room during a presentation, project confidence and warmth to engage the audience. Stand with power and feel confident before speaking to boost hormones that reduce nerves. Feel grateful for the opportunity to speak so you smile genuinely. Move around the stage purposefully to demonstrate control of the space. Make eye contact with different audience members to hold their attention. Use humor and fun anecdotes to uniquely engage others. Avoid nervous hand gestures and speak with the authority of an expert on the topic.