Public speaking is a process of speaking to a group to enlighten, inform, and entertain them. It is important to be prepared with note cards, make eye contact, and use an engaging voice volume. When giving a public speech, speakers should smile, relax, know their audience, be confident and flexible, wrap up on time, connect with the audience, use simple language, avoid fears and distractions, and not hurt people's feelings. An effective public speaker can inspire and motivate people to achieve goals through clear communication.