How can you say Hello in monkey language?

There's no such thing as a "monkey language" in the way we think of human languages. Monkeys communicate through a combination of:

* Vocalizations: Different types of calls and screams, each with a specific meaning.

* Body language: Posture, facial expressions, and gestures convey a lot of information.

* Scent marking: Some monkeys use urine or feces to mark their territory and communicate.

So, there's no one "Hello" equivalent in monkey communication.

However, if you're looking for a fun way to greet a monkey:

* You could try mimicking a friendly vocalization you've heard monkeys make.

* Offer them a treat (if it's safe and appropriate for the specific monkey).

* Make gentle, slow movements to avoid scaring them.

Remember, always be respectful of animals and their communication methods.