Have you said something positive about someone, when they’re note even in the room?

The exercise group here in Kingsport exercise on Monday Wednesdays and Fridays.
The exercise group is open to any age but most women are over the age of 50.
Someone had come into the c@p site and was wondering about the noise of the music and what they were doing. I had explained that these women come out and exercise three times a week.
He chuckled .... "They are the best exerciser's I have seen yet" I explained to him, they even sing when they exercise and its 80's hits music.