This foundation of this research question is how to induce users to engage in active critical thinking. Visual language is more easily accepted and understood by users, emojis as a part of visual language. In the case of dialogue, emojis are widely used to express human’s emotion, which greatly enriches the representation of plain text. Thousands of emojis are developed on social media every day, which makes emojis have a huge impact on daily life. As the design continued to deepen, I also found other problems, so that I had to change the direction of the design.