Good oral communication is the ability to express yourself clearly, the ability to sell yourself, and the confidence and skill to express yourself openly! Did you know that Warren Buffett, the richest man in the world, was actually a shy person when he was young? Warren Buffett, the richest man in the world, was actually a shy, introverted, stammering young man when he was young. Later, he decided to improve this weakness of his own, so he took a special communication course, because he realized that even if a person has good ideas, good advice is not enough, but also other people can believe in you, you will be successful!