Monkeys need a lot of variety and stimulation in order to be happy. In the wild, they spend most of their time climbing around trees and looking for food. Simulate that experience in your monkey's cage and around the house by providing lots of interesting things for the monkey to play with and pull apart.  Try hiding the monkey's food inside a box, or in a container with small holes that the monkey can reach one hand into. The monkey will have fun trying to figure out how to get to the food. Give the monkey stuffed animals, balls, and other toys to throw around and play with. Switch out the toys frequently so the monkey won't get bored. Monkeys are social creatures, and when they're left alone for long periods of time they grow very unhappy. Spend a few hours playing with your monkey every single day. As you bond with your monkey, he'll start trusting you enough to climb up your body and give you hugs or even kisses. If you have more than one monkey, less social time is necessary. Many monkeys are happier living with others of their kind. If you can afford more than one, they'll live happily together in the same cage. Hitting or yelling at a monkey will cause him to become afraid of you. It's also completely ineffective if you want to control your monkey's behavior. Remember that monkeys are wild, and they simply can't be trained to do exactly what you want them to do. From time to time they'll exhibit behaviors you might not like. Punishing them will only hurt your relationship.  The best way to deal with negative behaviors is to make sure the monkey isn't lacking something that he needs to be content. Does he have enough stimulation every day? Is he getting plenty of exercise? Are you playing with him enough? Monkeys that are afraid or agitated might bite from time to time. Again, you can't deal with this by punishing the monkey. Instead, get to know his moods and learn to leave him alone when he might be in the mood to bite. It's not a good idea to take your monkey out in public, or invite people to your...

TL;DR in Chinese:
给猴子足够的玩具和激励。 每天都花时间陪猴子玩。 不要体罚猴子。 不要让生人和猴子玩。 享受与猴子的交流。