one reading a book.
The person on the screen could be reading an e-book.
The person reading the book might have bought it using a screen.
The person on the screen might be ordering a book.
The person reading the book
might have to stare at screens all day
and so reads a book to take their mind off things and unwind.
The person on the screen might not be able to read and is streaming a film.
The person reading the book might not want a screen.
The person on the screen might swim regularly
The person reading the book might keep terrapins
The person on the screen might have pilots licence
The person reading the book might have a speech impediment and take size 10 shoes
The person on the screen might not care
It doesn't matter!