Your voice has five dials: speed, volume, pitch, tone (the emotion) and the pause. Any one stuck in one place goes flat, even a good one. Slow down for what matters, speed up for what doesn't, sit around 7 out of 10 on volume, and pause after the key line. A note you've never used will feel fake; it's only unfamiliar.
P Evidence: promising. Good studies, but small or few. Use it and keep checking.
E Evidence: built from practice. What works for coaches and practitioners. Labelled that way.
Sources
Speakers trying to persuade naturally got louder and varied their volume; it made them sound more confident and persuaded more, even when listeners noticed (Van Zant & Berger 2019, 5 experiments, 🟡) · the five dials and "unfamiliar isn't fake": Vinh Giang (🟠) · see 210.
Not medical, legal or financial advice.