Restaurant tips are more modest in Europe than in America. At restaurants, check the menu to see if service is included; if it isn’t, a tip of 5–10 percent is normal. In most places, 10 percent is a big tip. If your bucks talk at home, muzzle them on your travels. As a matter of principle, if not economy, the local price should prevail. Please believe me — tipping 15 or 20 percent in Europe is unnecessary, if not culturally ignorant.