2. “Cool!” You have the same reaction to everything.
“Once in a while, I just want to grab her shoulders and shake her. Does she even know what she’s saying ‘cool’ about?” a frustrated young man in his late teens explains. It’s not just what you say, but your lack of vocabulary is simply appalling. At a minimum, have a variety of facial expressions (such as, astonished, tickled, shocked, or sympathetic) ready to be used at the right time. You’ll be able to have a more fulfilling conversation with him.