Keep your knees bent. Extend one leg directly to the side and gently tap the foot to the ground.
Reach one leg to the side and put a little bit of weight onto the ball of that foot. Knees stay bent
Add arms! It can be as simple as bending one arm in front and the other behind. Knees stay supple.
Make it your own! Find your grove by adding different arms, hips, chest, head, tempo. Have fun!!!