"People are usually experts on their own condition," Ossie answers, mildly.

"Which is precisely the advice I'd give in any case. Regardless of your relationship to these people, the key is curiousity, attentiveness, and care. Listen to them, believe them when they tell you what they need, and- well, I'd offer the advice to write down certain specifics that they like or dislike, but that oughtn't be an issue for you, would it?"