My wife uses TV to shut off Ti. I know personally when I really listen to people I tend to kind of shut off my vision. I may stare blankly at something, fixate visually on an object. If I look right at you some of my focus goes into what you are doing or expressions and my mind wanders slightly. I probably appear to blank out, but I am really listening. You are essentially shutting off part of your Se to focus on other parts like maybe the running water, maybe internal thoughts.