Discussing and listening
Very often people discuss without discussing. A person speaks and the other person hears but does not listen because he already has in mind what he is going to say and he is in a hurry to say it.
We all tend to do this, to different degrees. When I realize I'm doing it, I immediately pay more attention to what my interlocutor is saying. Sometimes I pause before answering to let the other person really finish what they have to say.