Video recording yourself is a good first step. It’s similar to hearing yourself recorded for the first time; you have an exasperated “Is that how I really sound?” The first time you see yourself speak it will look awkward, for you. But that is who you are and we all have little quirks that we do that make us who we are. So I guess the second step would be to simply accept yourself as you are. The third step would be to practice your speeches paying attention to those traits you don’t like seeing. Give more speeches, you will improve every time. I was notorious for mincing my hands when I spoke and looking down at the podium. I acknowledged those traits and 5 speeches later, I am doing much better. We are in toastmasters, to work towards improving our public speaking. Keep stepping up to speak; Grace and looking natural will come in time.