The document discusses various methods that authors use to characterize characters in their writing, including through a character's appearance, actions, words, thoughts and feelings, comments from other characters, and direct comments by the narrator. It provides examples of how each method can reveal traits like being respectful, proud, dignified, squeamish, sensitive, nervous, thoughtful, compassionate, appreciative, loyal, concerned, playful, demanding, pushy, assertive, mischievous, creative, and angry.