Please and thank you go a long way.
"A coffee" costs 7e. "A coffee, please" costs 4.25e. And "Hello, a coffee please", costs 1.40e.
The manager, Fabrice Pepino told The Local that "it started as a joke because at lunchtime people would come in very stressed and were sometimes rude to us when they ordered a coffee". He continued, "most of my customers are regulars and they just see the funny side and exaggerate their politeness."
