http://www.ef.nl/epi/
In most of the world, English can take you far. As far as I can remember only in Spain I had problems making myself understood. The most interesting encounters are between well willing people trying to make themselves understood, but donot have a common speaking language. Next to that I notice that foottie is a bounding factor in most of the world. When nobody speaks English or Dutch, and I want to make known I am from Holland, windmills, tulips donot get the message across. Cruijff, Ajax or Gullit does.
International sign language can also be interesting. Different gestures can mean different things in different countries. In one country it can be normal, and in another it can be offensive. This can even be the case inside a country, but in different hoods. I remember trying to signal to a car behind me that I stand still, because the bridge is closed, hoping he would stop honking. The guy behind me didnot take that lightly and went to my car. He shouted at me with his head inside my car. I wanted to ask him why is he is doing so ugly, but the words in his dialect came out as me asking him why he was so ugly (he was very ugly by the way). You have to be careful. I also know that rubbing your hand on your chin is considered very offensive in Italy.
I am not aware of any 'funny' gestures in the UAE, so if you know any please share. The only preculiar word was inshallah, which IMO translate best as 'not today'.
I am very surprised by the way of the low ranking of English in the UAE, because I never had a problem.