Convey the reason for the characters actions
motivation
Dialogue is the element writers rely on the most to reveal a character's mood. Through the words a character speaks and how they speak them, authors can provide insights into the character's emotions, personality, and overall mood in a story.
In drama, motivation refers to the reasons behind a character's actions, thoughts, and feelings. Understanding a character's motivation can help actors portray their roles more authentically and help audience members interpret the character's behavior. Motivation adds depth and complexity to a character, making them more relatable and engaging.
Motivation
Other people in a story can't reveal characterization. Only the character in the story, or the narrator can reveal character.
Writers reveal information about characters in two basic ways:Direct characterization - telling the reader directly about the character, as in "He was a hard, bitter man."Indirect characterization - showing the reader about the character by dialogue, action, and appearance, as in "He made the sort of face you'd make if you bit into a lemon when she walked into the room."
motivation
What does the character want?
what does thier argument reveal about the personality of each character
what makes the character act the way he or she does
The term is "motivation." Motivation refers to the reasons why a character behaves a certain way or takes a particular course of action within a story. Understanding a character's motivation can provide insight into their personality and choices.
It depens on who you are.