As you finish your meal, eat all the food off your plate and place your knife and fork together at the 5:00 position. If dining at a restaurant, the host is expected to pay for everyone, but many times the host may excuse him or herself to pay at the bar or cashier station. If you dined at a local's house, it is appreciated to send a hand-written thank you note the following day.
Most restaurants and bars include a service charge in your bill, but if not, about 10-15% is standard. When tipping at a restaurant though, never leave the money on the table, instead give the money to the server and tell them how much you want to pay (bill and tip together).
Drinks
Although small, Liechtenstein has access to every popular drink in the world, including soft drinks, juices, tea, coffee, and milk.
International alcoholic drinks are also widely available, but many people have a preference for their locally produced wines. Although the country is little more than a mountain valley, grapes are grown on the valley's slopes and from those grapes, red wine is produced and is fairly popular.
Generally speaking, the tap water is safe to drink in Liechtenstein, but check with locals for any particular regional differences. Also, many people may have troubles adjusting to the local tap water, as it will most certainly be different from what your system is used to.