Start a character sketch (or character outline) with the five principles: Name, age, gender, appearance, and occupation. Detailing each of these builds a stable foundation for your character and paves a path for more questions. Then ask more intriguing questions, such as: What is their outlook? Then, branching off their outlook: Are they optimistic, pessimistic, or realistic? What are their ethical or moral beliefs? The questions should be personal and straightforward to help you understand your character.