How much should I tip in Rome?

Tipping is not required but recommended. If you like the service, you should tip a minimum 5 to 10%. Most service staff are, unfortunately, poorly paid—a tip would make them very happy, especially a big one. Plus, as one of my Texas client/friends said, it is American diplomacy. Everyone loves serving Americans because they tip regularly and well. Moreover, they are some of the most pleasant customers to serve. You can give the tip to your waiter directly or leave it on the table.  Most restaurants have a tip bank and divide it up at the end of the day.