* Hoots, screams, barks, and grunts: These sounds can convey emotions like alarm, aggression, or excitement.
* Calls: Different species have unique calls for specific purposes like finding food or warning others of danger.
* Facial expressions: Monkeys use facial expressions like grimacing, lip-smacking, and eyebrow movements to communicate.
* Body language: Posture, gestures, and movements like shaking their head or raising their arms can convey intentions.
So, while a monkey might not say "hello" or "goodbye," they communicate effectively in their own way!