"Take the story to the people. Try not to have tables, lecterns, or other furniture between you and your audience. Move toward them. Make eye contact with individuals at key points in the story. If telling to children, keep your story simple and not too long. Exercise their attention spans, don't wear them out. If you forget something, don't be afraid to ask the audience what comes next. Don't look down—this cuts off your eye contact. Instead, look slightly upwards to the realm of inspiration. The audience will still feel your connections and the 'story angels' or 'ancestors' will likely help you out.
Extracted from my forthcoming e-book The ABCs of Storytelling by Michael Williams, StoryCoach