People use their arms and hands in every day conversation to add emphasis or to help describe events. Presenters will therefore look rather awkward if they keep their hands in their pockets or rooted firmly at their sides. Use gestures to welcome your audience, to add emphasis to your main points or to indicate an ending. Try to use open gestures which move away from your body, extending them out to your audience. This helps to break any audience/presenter divisions. Make sure that all gestures are controlled and precise; too much movement will appear nervous and unfocussed. Always watch against distracting your audience from the content of your presentation. You should continually be trying to find ways to help them listen and understand.