Emoji pack is a popular culture formed after the rise of social software or social networking sites. It is usually based on popular celebrities, quotations, cartoons and screen shots, and uses a series of matching words to express specific emotions.

Expression packs are essentially a popular culture. Relying on the continuous development of social and network, the way of communication between people has also changed accordingly. From the earliest written communication to the use of some simple symbols, emoticons, emoticons and expression packs, it has gradually evolved into an increasingly diversified expression culture, using some self-made and popular element pictures to communicate.

Most of these pictures are funny and exaggerated in composition. By collecting and sharing these pictures, people can have fun, and at the same time show their hidden pictures, which can be recognized by people and achieve psychological satisfaction.

Many people have thousands of WeChat friends, and the resulting problem is that all kinds of workplaces and lives are mixed together. Many people are tired of dealing with the replies from WeChat friends every day. Using "Yan Wen Zi" can save the time and energy required for replying.

At the same time, the pace of modern people's work and life is accelerating, and using various forms of "expression packs" to reply can also provide some fun for the communication between the two sides, which is why "expression packs" are so popular.