Is it seen as rude not to order three courses at a restaurant.? Say you and a friend want to share three or four. In a number of guidebooks that I have looked at it seems to be portrayed as proper to order three each.
Also what is the norm when it comes to finishing an entire plate? The portions in Rome can often be quite large, and room needs to be saved for other courses. But I don't want to stick out more than I already do as a foreigner.
What is a good sized tip to leave at restaurants?