“The next time you give a presentation, try to have it recorded, then review the video with the sound off, watching only your body language. How did you stand and gesture? Did you use any of these positions? If not, think about how you might do so the next time you’re in front of an audience, or even just speaking to your boss or a big client. Practice in front of a mirror, then with friends, until they feel natural.”
This is a method I’ve done. Just like everything else, practice makes perfect. Although it’s incredibly miserable to watch yourself – and my voice always sounds weird (e.g. Do I really sound like that?!), this is a solid method for making improvements to your presentations. As seen on TV below:
Image and text via Harvard Business Review.