How can I deepen my understanding of character psychology for stage and script?

Characters live in contradiction—this is what most actors miss. You think you understand someone, and then one small action reveals you didn't. This is what fascinated me about human nature. The lady in waiting isn't simply 'sad' or 'ambitious'—she contains both, and the space between them is where the real character lives. Start by writing or improvising scenes from the character's interior perspective. What does she want that she can't admit? What does she notice that others don't? What small rituals does she perform when no one's watching? These details matter more than plot. Observe people in real life—the way someone's hand trembles, the pause before they answer, what they choose to remember. Psychology isn't about diagnosis; it's about precision of observation. When you perform or write, trust the contradictions. A character convinces us not through consistency, but through the honest messy way real people actually live—wanting opposite things, noticing details others miss, carrying histories they barely understand themselves. That complexity is what makes an audience lean forward.