Complimentary Bread Isn't Always Free: In many places, particularly in Italy and Portugal, bread brought to your table isn't free.
Still Water vs. Sparkling: When you order water in many European restaurants, waitstaff will often ask if you want "still" or "sparkling" water, and it's usually bottled rather than tap.
No Ice in Drinks: Drinks in Europe typically come with little or no ice. If you prefer your beverage icy, you might need to specify it.
Pay to Use the Restroom: In some countries, especially at cafes and train station eateries, you might need to pay a small fee to use the restroom.
Meal Times Are Later: Especially in Southern Europe, dinner times start much later than in many other parts of the world, often not before 8 PM.
Tipping is Less Common: Tipping is not mandatory and is often much less than what is customary in the United States.
Smoking May Be Allowed: Depending on the country, some restaurants, especially outdoor seating areas, may allow smoking.
Menus in Multiple Languages: In tourist-heavy areas, it's common to find menus in several languages, which can be both helpful and surprising in the depth of translation.