Well, I am sure mine know their names and 'play' and 'Dreamies'. However, I have also learnt some of their rich, non-verbal communication. This includes:
Paw tentatively raised above my knee = 'Can I sit here?'
Paw gently pressing my hand down = 'No more stroking please'.
Short trill at my bedside = 'Good morning/Get up'.
Slow blinks = we're friends.
Instant reaction to objects of reference - running away as soon as they see flea treatments, excitement when pouches of cat food appear, evacuating the room when the vacuum cleaner comes out.
Lots of leading behaviour e.g. to toys, to food bowl, to the door and so on.
Knocking laser toy from table = I want to play with this.
Overtly flirtatious behaviour from our female cat who has endometriosis (despite being spayed) to any male = who knows what!
I was brought up on a farm and our sheepdogs knew a huge range of verbal commands and whistles, and I would never underestimate the intelligence of a dog and its capacity for trained response. Cats, however, train us