Its practice, and Ive got an athlete on the wall trying to puzzle out a movement they can make to unlock this particular climb (spoiler alert, its slide the right foot up). They keep trying to move their left hand. Its not working. Theyre getting tired, angry even. As their coach, Im dying. Every part of me wants to yell, right foot! I want to relieve them of their frustration. I want to teach them the right way. So, I do. They finish the move, power their way up the rest of the climb, and come over for a palm-stinging high-five. They feel like a good athlete, and I feel like a good coach.