Gesticulate – use gestures, especially to emphasise what you are saying
The jester could not articulate (gesticulate) himself, he could only express his feeling with gestures.
Examples of gesticulate in a sentence
They couldn't hear him from behind the window so he had to gesticulate elaborately to get his point across.
Body language and the way in which you stand and gesticulate is extremely important when public speaking.
Don't look patronising when you gesticulate heavily whilst trying to speak a foreign language on holiday.