Does he pretend about the issue? Does he wear a frown, look vexed or indifferent? Does he accept prompts to speak out or does he shut any such doors? Can you recognize in what ways he attempts to mask his feelings or attempts to avoid further conversations?
Does he hint at a quick goodbye or a slow one? Does he hint that he has time to spare or wish to be on his way? Does he pretend not to hear the other person or does he behave as if he does? Does he pretend not to hear with grunts, silence or with more words? Does he use more questions or more unrelated answers? How might you get him to say what’s on his mind because you’re convinced what he wished to say, is very important?