Always learn - watch movies, read books, take courses or simply observe people around you and be aware of the characteristics that make a person a great speaker. Know yourself and your abilities - for a speaker to be convincing, he needs to have confidence and to believe in what he is doing. Plan your performance - determine the basic story that would resonate with your audience. As a motivational speaker, you need to invest in your skills and knowledge so you can inspire your audience to change some things in their lives. And of course, despite listening to the advice of experts, there is a chance you won’t become a motivational speaker. They have the knowledge and the ability to inspire many people to change perception and to take responsibility for their own actions and maintain a positive attitude so they could take on everyday problems. See that as an exercise, and soon you will improve.
There is often something in their way of speaking that pulls people to listen to them. This is not a hard job. This might not bring you popularity and lots of money, but the fact you changed someone’s life for the better will certainly make you feel fulfilled; which should be the goal of every motivational speaker. Have a clear picture of what you what you would like to say, and be ready to improvise as per the situation. The job of motivational speakers is to get people to believe in themselves, so they could, with confidence, achieve their goals. But that doesn’t mean you can’t encourage and motivate people in your environment.