Look for something new. Practice scanning your environment, consciously looking for what is new, different, and unusual. Ask yourself questions, like How has this street changed since the last time I walked down it? What are the differences between the people on the train? What do I notice today about my colleagues? These questions might seem silly, but they force you to live in, think about, and focus on the present—to become aware of your surroundings and not slip back into autopilot.