You stand together. Hands at your side, heels and toes together. Okay? When I instruct you to do so, you're going to pick either leg of your choosing. It doesn't matter which one, approximately 6 in off the ground. Okay? Follow me. >> What is this thing? >> It's about the length of like a Coke can. Okay? I'm going to demonstrate. >> Okay, okay. Thank you. >> Okay. When I instruct you to do so, it doesn't matter which leg, either of your choosing. Okay? You're going to lift it up off the ground, holding your foot parallel to the ground, counting out loud each second. Okay? It's going to look like this. Down at our feet, counting out loud, 1,001, 1,002, 1,003, and so on until I tell you to stop. Okay? Do you understand these instructions? 1,003, until I tell you to stop. You don't count the second that your foot is up. Do you want me to demonstrate again? >> Oh, no, no. >> So, our hands are down at our side, we're going to pick up our foot,