So, I'm going to demonstrate this one while I explain it. All right. So, when I tell you to begin, actually I'll have you stand with your feet together, arms down by your sides again for me, please. Thank you. Okay. When I tell you to begin, you're going to lift one of your feet, either or you pick, at least 6 in off the ground. You're going to lock your knees so your legs are straight and your foot's parallel to the ground. And you're going to look down at your raised foot. Obviously, I'm not going to do that for safety reasons, but you'll look at your raised foot, leave your arms by your sides, while looking at your raised foot, you'll count out loud 1,001, 1,002, 1,003, and so on until I tell you to stop, okay? >> Okay. >> All right. Give me just a second. Maybe. Perfect. All right, you can go ahead and begin. All right, you can stop.