To write a character's personality through language, one could start from the following aspects: 1. Description of the character's appearance: For example, the character's facial features, physical features, clothing, and other details can reflect the character's personality traits. 2. Description of the character's words and deeds: Through the character's words and deeds to show the character's personality, such as the character's way of speaking, behavior, way of thinking, etc., can reflect the character's personality characteristics. 3. Description of the feelings and emotions of the character: The feelings and emotions of the character can also reflect their personality traits such as the character's emotions, sensitivity, rationality, etc. 4. Prominent character characteristics: When describing a character, you can appropriately highlight its personal characteristics such as the character's unique personality, special experience, personality characteristics, etc. These can lay the foundation for the description of the character's personality. 5. Use dialogue description: Through the dialogue between the characters, you can better show the character's personality traits such as the character's way of thinking, way of speaking, attitude, etc. In the process of writing, you should pay attention to the description of the character's personality. Don't be too rigid. Try to show the character's personality characteristics and true emotions as much as possible so that the reader can better understand and feel the character.