To write the facial expressions of the characters in the novel with emotion, one could do the following: 1. Focus on describing the eyes of the character: The eyes are one of the parts that can convey emotions the most. You can express their emotions by describing the eyes of the character. For example, when a character feels sad or angry, their eyes may become deep or cold, and when a character feels happy or happy, their eyes may become bright or gentle. 2. Use detailed descriptions: Using detailed descriptions to show the emotions of the characters in the novel can make the expressions of the characters more vivid. For example, when a character felt sad, they might gently stroke their face with their fingers or close their eyes to show a deep contemplation. 3. Use facial expressions: In addition to describing the eyes and other parts of the face, you can also use facial expressions to show the emotions of the character. For example, when a character was angry, they might frown or show a hint of impatience. 4. Combining actions and language: By combining the actions and language of the character, the expression of the character can be more vivid. For example, when a character felt sad, they might lower their head in contemplation or sigh softly. Through the above methods, the facial expressions of the characters in the novel can be more vivid, allowing the readers to better feel the emotions of the characters.