There are people who do not want to listen to anything. They have read and they have seen and they already know. They interrupt you in the middle. Answer them. I admit that what I am going to tell you will not be new. But I may formulate it using different choice of words. This will be an experience in enriching your vocabularly. Besides - talk is not only means to convey information. It is one of the pleasant ways of spending time together. When the time for more pleasant ways has yet to come. Or not to come.