Oops, sorry: not Rome, my apologies. This was in Split, Croatia, yesterday, while having a hearty breakfast at the"Caffé de Floré".
The guys posed for selfies, from mostly Asian tourists. And didn't even ask for money!
Explanation. Former roman emperor Diocletian, after quitting his day job, has himself a "retirement villa" built. A huge palace in the place which would become Spalato in italian, Split in croatian.