1. the act of making gestures, especially animated or dramatic movements of the hands and arms while speaking

Examples

• The professor’s wild gesticulation made his lecture more engaging.
• Her constant gesticulation while telling the story kept everyone’s attention.
• The actor’s dramatic gesticulation conveyed emotion without words.
• His nervous gesticulation revealed his anxiety about the presentation.
• The interpreter’s gesticulation helped bridge the language barrier.
• She tried to control her gesticulation during the formal interview.