If you want to learn to play the piano you can't just read books about it. At some point you're going to have to sit down and touch the keys. People do not change by thinking, they change by doing. John Berardi, PhD, CSCS, has devoted his entire career to helping people make positive change. He is the cofounder of Precision Nutrition, an organization that has mentored over 200,000 people worldwide in health and fitness. He joins the Creative Muscle this week to discuss the process for personal growth, barriers that keep people from change, ambivalence, goal attainment, making the implicit explicit, and how to become a better listener.