My first cat Amber (RB Mr. Amber Cat) was very vocal. No one else needed to say a meow, he had it covered. He was my heart cat. He was a chatter-er non stop mutterings all the time. (Gosh how I miss that boy!)

He left us when Chestnut was 4 and within a month, Chestnut was a talker. Can't shut him up now!

Sparkle only talks for food.

The rest only seem to verbalize when they want something from a human. Food, petting, food, cuddling, food, brushing (Vita is the only one who asks for brushing, she is my only long haired kitty). And of course, food.