Jessie loves going up and down the 'travelators' at shopping centres. But why does she stand side-on with her arms out? Because she is surfing, of course.
She jumps onto the travelator and then lies down on her tummy. I am sure that people think she's fallen and she can't get up, but in fact she is lying down on her imaginary shortboard, paddling her arms until she gets out to where the "waves" are.
Then all of a sudden, she snaps into a side-on standing position, arms held out for balance. She stays in that position, occasionally swaying and saying, "Woo-oo" until we are finished, then she hops off the travelator and walks off through the shopping centre with her "board" under her arm.