cultivate hobbies
In addition to telling him, we should also cultivate children's hobbies and cultivate their sentiments in daily life and teach him to play chess (chess or Go), Chinese painting, calligraphy and so on. Of course, music and dance are good choices for children. Let the child gradually understand the importance of politeness and cultivate his calm personality.
Family code of conduct
Finally, family members must be careful not to swear, because children can learn.