As with many aspects of traveling, we first need a fall back position. If people don't understand us, we automatically start talking louder. With tipping, we need a fall back percentage. When all else fails, 15 percent is usually a good percentage.

We now have a default percentage, but what about initiating the tipping process? Much like dancing, someone has to lead! In some areas, you are expected to add the tip to the bill while others simply incorporate it in the bill automatically.

The first place you will do some tipping is probably the airport. Do not attempt to tip the customs officials! The airport skycaps, however, should get a dollar or two depending on how many suitcases you are having them carry for you.

Taxi rides should be considered part of the cultural experience of any big city. For you, it will be a necessity if you want to get from the airport to your hotel. A standard tip for a taxi driver is in the 10 percent range.

In every movie, you see the bellhop standing awkwardly waiting for a tip for carrying bags up to the room of the movie star. So, how much are you supposed to give? A couple bucks should cover it, but more gets better service in the future.

Alas, you might be able to escape the world of tipping etiquette all together. In some countries, the culture is such that tipping is frowned upon as a matter of course. Any attempt to tip is considered an insult, so don't!

The issue of tipping is going to come front and center for a lot of people in 2008. The Olympics are being held in China and the Chinese do not find tipping acceptable. Throw in the language differences and there is going to a lot of confusion.

China is hardly in the minority in its views on tipping when it comes to major cultures. Much of Asia holds with the view. Russia, the Swiss and Holland are other countries that also frown upon the idea.

Ultimately, the decision to tip is one of personal satisfaction. If somebody provides you with stellar service, then show your appreciation. If they don't, don't!