Queue and shopping experience

While in queue people was bored.

15 boring minutes can affect your shopping experience.
Changing 15 boring minutes in 15 amusing minutes can improve it.
People who buy in the same shop are “like-shop-minded”…
They probably have much to share (not only about shopping).

What about a screen on which people write anonymously via bluetooth?
Shoppers might use it to make questions to other shoppers… or just to have fun.