Back in college, I was amazed at guys who in private were warm and engaging but who clammed up when given a microphone. The most common mistake was to read their speech (or sermon) in a flat, monotone voice. No movement. No color or emotion.
The human voice is God’s most creative instrument. Use it to add depth to a deep point or excitement to an idea that should inspire passion or joy. To get people to lean forward, whisper. To allow them time to think, press pause.
To inspire or move to action, say no to monotone.