This girl in yoga class is impeccable. Her body is aligned, her hands touch the floor, her head rests on her knees. The instructor aids everyone else, adjusting their position, giving them tips, but he leaves her be. That is, until the portion of class where we lay down and cover ourselves with a warm blanket. Then, he leans over her gently. "You're holding some tension in your shoulders. Yes. Let the muscles in your face go..."