Just basic communication. It may depend on the dynamics with a person's therapist perhaps. With my therapists, we were pretty informal and always engaged in a certain amount of chit-chat about family activities, etc - really not therapy conversation - just friendly banter. In that way, we got to know each other just as people rather that just therapist/client. So, we developed a clear "caring" relationship like you would for anyone you engage with on a regular basis. It was just sort of a given after a time.