Comment by Srishti101

I try a simple practice technique before big presentations. Just sit in a room alone and record your voice as you present. That will help you see your communication errors, slows, bad sentences etc. Its just practice. I learned from working with some of the best presenters I know, they spent years working very hard before each presentation/discussion and that helps them get better. They make it all look magical but its just a lot of hard work behind their seamless flow of thought.