Many people are uncomfortable while on public speaking. Some of us become jittery and sweat while speaking even to a small number of people. There are some people who stammers and becomes cold and sweat while talking to a person unfamiliar even one is to one basis. But is a few things are taken care of then addressing mass will not be difficult. You can come out of the nervousness while speaking, Fumbling while speaking, jittering while speaking, whether on one is to one basis or a public speech.