This pattern requires you to have right to right, left to left. Bring both up. Turn on. Finish entire turn as you finish you go under. Do it yourself, her, me. You can start getting fancier and start using different actions to it. I can do first one side, or use both at the same time.
You can create different movements with it. Now let's try it with the music. Difference. Regular. Take it back. That's alternating turns.