If you're trying to elicit any of these emotions at any point in a conversation or presentation, speeding up your speech can help. People naturally talk faster when they get excited. So when you signal your excitement with fast speech, the listener's experience will mirror that emotion.

What does speaking fast indicate?

People interpret fast talking as a sign of nervousness and a lack of self-confidence. Your fast talking can make it appear that you don't think people want to listen to you, or that what you have to say is not important.

Why you should talk fast?

Fast Speakers Are More Credible

In the late 1970s a study published in the Journal of Personality and Social Psychology suggested that if people talked at a somewhat fast rate (195 words per minute), they were perceived as more credible, intelligent, socially attractive, and persuasive.