It's playing video games.
They're playing the piano.
She's painting.
He's singing.
It's skipping.
It's dancing.
They riding.
He's watching TV.
He's reading a book.
He's doing the splits.
It's flying.
He's running.
It's walking.
She's shopping.
He's eating.
It's swimming.
They're playing football.
He's cooking.
He's sleeping.
It's calling.