This example is a major misunderstanding between countries. Everyday we misunderstand or misinterpret what people are saying to us. We can take one simple nice compliment, and make it out to be like someone is making fun of us. Misunderstandings take place everyday, and there will never be a way to solve all of them. Often people in the world mistake words to mean something other than they really mean.
Many people often misunderstand what people are trying to say because of the speakers tone of voice.
Someone can take a word and make the meaning totally different. This is an example of what we call slang . Also, many words can sound the same but have very different meanings these are called homonyms. This would be very complicated to someone foreign to our country. Pretend you are from a foreign country and decide to be an exchange student in the United States, could you imagine learning all of the different spellings and meanings to all of the words that are pronounced exactly the same.