Just ask them for their feelings.
Katharine, for example--" "Katharine," said Henry, with an emphasis upon the name, almost as if he resented Rodney's use of it, "Katharine is very unlike most women." "Quite," Rodney agreed.

"She is--" He seemed about to describe her, and he hesitated for a long time.

"She's looking very well," he stated, or rather almost inquired, in a different tone from that in which he had been speaking.

Henry bent his head.
"But, as a family, you're given to moods, eh ?" "Not Katharine," said Henry, with decision.
"Not Katharine," Rodney repeated, as if he weighed the meaning of the words.

"No, perhaps you're right.