This Simple Thing Can Make You Much More Convincing, According to Research | TIME
Eric Barker stashed this in Diabolical Plans For World Domination
Research shows that consistency in tone is extremely persuasive. People who don’t get shaken up and maintain a smooth approach have a natural advantage.
Stuttering, long pauses, pitch of the voice going up and down… none of these inspire confidence. Avoid emotional variability in how you carry yourself when presenting. A narrow tonal range conveys a high degree of control and certainty.
That said, this is not the best approach for all scenarios. Sometimes you need a softer, open attitude:
If the spotlight is not on you and you need to be open to the ideas of others, it can backfire. In those situations a softer, more open attitude wins the day. Here, a less consistent, less focused approach shows you are open to the ideas of others.