What's the man doing?
He's jogging/running.
What's he doing?
He's riding a bicycle/bike.
What's she doing?
She's doing yoga.
What's he doing?
He's swimming.
What's he doing?
He's playing soccer.
What's he doing?
He's playing basketball.
What's he doing?
He's playing volleyball.
What's he doing?
He's playing the guitar.
What's he doing?
He's playing the piano.
What's she doing?
She's reading a book.
What's this?
a cap
What are these?
socks
What's this?
a T-shirt
What are these?
boots
What's this?
a jacket
What's he doing?
He's working/studying. | He's using the computer/internet.
