What is the most logical next event?

The adult female is drawing squares on the ground while two kids are watching her. the little boy

Select from: [+] is rubbing his finger over the mermaid.; [+] is waving at the camera, then played hop scotch.; [+] gets stuck making a circle and is just trying to leave, he pushed and he has to redo.; [+] is playing with the pinata hanging from the ceiling.;
is waving at the camera, then played hop scotch.