Please be a good 'guest' wherever you travel. That means dressing appropriately and being extra kind & considerate to the people you meet AND to the places you visit. Use your camera with discretion. Go out of your way to learn basics of the destination language in advance of your trip. Don't wear garments with big boisterous names & banners; and when in Italy avoid white socks, tennis shoes, shorts & knobbie knees ............unless at the gym or at the beach, or at other informal locations.
Per favore, grazie, benvenuto ...........a doppo !