What is the general logic behind the joke?

Humor, as an excellent quality, can make you better than others, whether in a relationship between the sexes or in the workplace. In daily communication, the most humorous person in the crowd is often the most popular and favored. But you have watched so many comedies, and you still can't tell a few funny jokes. The jokes you deliberately suppress are not only not funny after telling them, but also make the atmosphere awkward?