2. Recently, many new expressions have been launched on WeChat, and in these new expressions, each expression is very interesting, and the meaning represented by each expression makes everyone feel very vivid. Everyone feels very happy when they see these new online expressions. Now online expression has become a way for people to express their feelings and emotions, and these ways can not only clearly express some of people's emotions, but also bring more temperature to people's communication. It can be said that in today's network communication space, expressions have become an indispensable chat tool.