Anyone can be an effective public speaker; it only requires practice and preparation. In their 2009 research, David Cornish and Dianne Dukette showed that an adult could sustain attention for just about 20 minutes. A passionate speaker exhibits a kind of engagement and energy that shows how much they have invested in the topic. Again, you will be surprised how a mistake can, at times, work for you. Research your topic beforehand and find things that interest you. Just deliver your points and use the remaining time, say for questions and let the audience out. Tell them stories; tragedies, triumphs and humorous anecdotes. John Antonakis, a business professor at Harvard, says using charismatic language is critical in communicating ideas effectively.
An excellent public speaker should exude some level of sincerity in their emotions when delivering a speech. This is helpful. This means that if a presentation takes more than 20 minutes, an effective public speaker should split it into chunks that would take 20 minutes at most. According to a Quantified Communications coach, Briar Goldberg, being nervous makes you mentally absent for your speech. It can be a way of connecting with your audience. Most people will often get nervous when speaking in public. For instance, use hand gestures to emphasize your point, and convey emotions like disappointment and excitement.