When Mac has been in the yard and I open the back door for him to come in, he gives me one tiny mew as if to say 'Thanks'. But if he gets stuck outside during a rainstorm, he comes in meowing several times in a loud voice interspersed with grumbles! I know he's ticked off.
He's the only one allowed to go outside. He stays in the fenced back yard, mostly because he's too chubby to climb the fence.

Squeakers walks up and down the hall in the evening, yelling in his broken voice for food. He sort of 'Ack Acks' while he's meowing.

Shai has a frantic cry with a warble when she wants Temptations. She walks on her back legs, begging until I get her some.