Everyone loves stories, especially when they're related to the discussion topic. Story-telling can also be an effective method of driving your point home. People remember a story and will likely carry it with them once the presentation is over. Simply put, a static speaker produces a listless audience. Having several points from which you present proves you're alive, forces your audience to keep its eyes open and, because you are moving, actually reduces your own stress.
Enthusiasm is important.
Everyone knows it's contagious so communicate your excitement by smiling, making eye contact and using an enthusiastic tone of voice. Get the audience involved. Nine times out of ten, audiences remember a session in which they participated. But make the participation voluntary and easy. Demonstrate your proposition.