Amp it up. Use exaggerated hand movements. It may feel over the top, so practice in front of a mirror until the actions look natural.
Use catchphrases. An attorney trying to win over a jury might say a defendant put “profits over people.” Such phrases can make a speech forceful.
Add reference. If you’re talking about a product, hold one up along with a competitor’s to show differences. Props kill monotony.
Ask questions. Pose some of your own to spark a conversation. Your audience will be more enthusiastic–and you’ll avoid awkward silence if nobody raises a hand.
(Sources: Alex Krug, of Behance; defense attorney Stuart Slotnick, of Buchanan Ingersoll & Rooney; artwork: Jesse Lenz)