Primates try to repeat ordinary, routine actions after people. This monkey saw enough in the zoo how people drink from bottles and decided to try it for himself.
But the monkey did not take into account the fact that the bottle is closed with a lid and is generally upside down. She did not unscrew it and tried to repeat the same actions as a person. The water did not pour, and the monkey thought. Maybe she thinks someone cheated on her?
The video was filmed at the Indonesian Zoo. Animals often steal food from people there.