Energy and enthusiasm
Your energy on the mic needs to be a notch higher than you think — flat audio feels even flatter through headphones. Smile, stand, and lift your delivery on purpose.
Recording flattens everything. The version of you the listener hears is always a little lower-energy than the version you remember performing. The fix isn't shouting — it's intentional lift. Smile, even if no one can see you. Stand if you can. Pretend you're talking to a friend across the table.