In my master of Interaction Design study, these three design theories significantly shaped my way of thinking when creating thoughtful, user-centered design: Ethical awareness and responsibility: Through the "Moral Agent" approach, I learned to consider ethical implications in design decisions. In addition to focusing on functional and business goals, I learned to prioritize design's social and ethical impact so that each project aligns with the values of the team and users. Understanding User Behavior: I learned the skills to strategically guide user interactions with the "Design with Intent" toolkit. With insights from behavioral psychology, sociology, and cognitive science, I designed experiences that both encouraged desired behavior and respected user autonomy. Risk awareness and scenario planning: I learned to anticipate potential adverse outcomes and identify ethical risks in advance of the design process through the "Black Mirror Brainstorm" approach. This technique has significantly improved my thinking about the possible misuse or unintended consequences of design, reassuring me that I can balance innovation with the safety and well-being of my users.