...what would you do?
How would your response differ if a basic stranger asked you compared to a friend, or depending on the expression on the person's face etc.? What if someone asked you their opinion of a third person? Consider the various scenarios, like whether you are talking to a stranger\friend about a stranger\friend, or what the person's demeanour is at the time - would you tell the third person about the coversation, and what exactly would you tell them? What if someone was about to tell you what someone else had said about you - what would you do?
Class dismissed... - I'll respond some other time, if I'm in the mood.