A smile was a language and an attitude that could convey infinite warmth and kindness. In novels, smiles were often used to create an atmosphere, portray characters, and deepen the plot. We can discuss the meaning and value of smiles from different angles. Smiling in the plot line could be used to create suspense. For example, Wang Xifeng's smile in 'Dream of the Red Chamber' was mysterious and unusual. Another example was Cao Cao's smile in Romance of the Three Kingdoms, which made people feel eerily strange. Although these smiles seemed casual, they contained deep meanings that could arouse the readers 'strong curiosity to further understand the secrets behind them. Smiling on the character line could be used to portray the character's image. For example, Lin Chong in Water Margins was forthright but delicate. Once, at a banquet, he revealed a smile that made people feel the softness and warmth in his heart. Another example was Sun Wukong in Journey to the West. Although he had a bad temper, he was very kind. During a battle, he revealed a smile that made people feel his inner peace and determination. These smiles not only portrayed the character's personality but also allowed the reader to understand the character's inner world more deeply. Smiling in the storyline could be used to deepen the plot. For example, Wang Xifeng's smile in Dream of the Red Chamber could allow readers to understand her personality and inner world more deeply. Another example was Cao Cao's smile in Romance of the Three Kingdoms, which allowed readers to understand his gloominess and strangeness more deeply. These smiles not only made the story more lively and interesting, but also made the readers understand the meaning and value of the story more deeply. A smile was a language and an attitude that could convey infinite warmth and kindness. In a novel, it could be used to create a suspense atmosphere, portray characters, and deepen the plot. It could also be used to create an atmosphere, portray characters, and deepen the plot. Whether it was the plot line or the character's smile, it could have a profound impact on the readers, allowing them to understand the meaning and value of the novel more deeply.