Habit 1 discusses being proactive. It explains that proactive people make things happen through their own decisions and choices rather than blaming outside conditions. They are responsible for their own behavior and response to situations. Reactive people on the other hand blame outside factors for their behavior and build their lives around other people's emotions. The document emphasizes that we have freedom to choose our response and that what matters most is how we respond to what happens in life. It encourages taking initiative to act rather than be acted upon.