Mexican president Felipe Calderon visits areas affected by hurricane Dean

What do you think the phrase 'Are you?' implies in a conversation?

In what contexts might someone ask 'Are you?' and what could be the intended meaning?

How does the tone of voice affect the interpretation of the question 'Are you?'?

Can you provide an example of a situation where 'Are you?' could lead to misunderstanding?

What are some possible responses to the question 'Are you?' and what do they reveal about the responder?