Many people give the appearance of listening but fail to really hear what is being said to them. They assume that listening is such a basic sense that it will happen automatically. This is not the case. Or it might be that they are so used to making all the outward gestures of listening that they are convinced it is really happening. It is not difficult to pick up on tone of voice, body language and facial expressions, all of which indicate the gist of what is being said. All it then takes is to hear a few key words and it becomes very easy to think you have understood everything you've been told, and to give the convincing impression that this is so by returning appropriate tone of voice, body language and facial expressions. Proper listening requires the listener to understand, interpret, and evaluate what they are being told. Without this, communication is nothing but a façade, which may suffice when you are passing the time of day talking to a neighbor in the street, but is wholly inadequate in any business environment. As businesses depend on human interaction to succeed, the quality of that interaction must be of the highest caliber, and interaction means communication.