Persuading with Pitch, Volume and Non-Verbal Cues

In their efforts to persuade and influence others, leaders pay close attention to the words they choose. Listeners, however, often doubt the sincerity of those trying hard to persuade them. Research into how leaders modulate their voices — by adjusting the volume of their speech, for example — reveals that such ‘paralinguistic cues’ can enhance their persuasiveness, and even increase their perceived sincerity.