gestures; gesticulation
Refers to using body and hand movements to communicate, often in place of or alongside speech.
When words don't get through, you have no choice but to communicate with gestures.
He spoke passionately, using gestures.
Since we couldn't understand each other's language, we communicated with gestures.
He explained things while gesturing with his hands and body.
I couldn't figure out the way, so a local explained it to me with gestures.