Following a post from a friend discussing her cat's comprehension of English, as catalogued (groan) by her husband, here's a list of words the Daw Bank animals understand:
Cat vocabulary (Sooty)
Sootycat, cat, biscuits, get on yer podium (obeyed only if you stand by the kitchen chair to groom him), d’you want OUT, come on, don't even THINK about it, no, beHAVE yourself, oi!
Dog vocabulary (Mickey)
Mickey, dog, good lad, gently to the pussycat, RATS, sit, down, come here (not always obeyed), go round (eg when tether rope is round a tree, to free himself), through here, come on, tea-time, away ye go, clever lad, that’ll do, don't you DARE, be quiet, no, beHAVE yourself, Oi!
Pony vocabulary (Eric)
Eric, come here Chuckles, stand, wait, walk on, trot on, steady, come in / come around (turn while going forward), step over (move sideways but not forward), back, foot / pick it up / This One Please, come on, good lad, clever lad, "It's just a...<insert name of scary object>", CALM yourself (put face between human hands and stop being an over excitable nob), no, beHAVE yourself, Oi!
Pony vocabulary (Ruby)
Ruby, come here Honey, stand, wait, walk on, trot on, steady, come in / come around (turn while going forward), step over (move sideways but not forward), back, foot / pick it up / This One Please, PUSH (shove door or gate with nose, comes in handy at times), "It's just a...<insert name of scary object>", come on, good girl, clever lady, would you like a Polo, no, beHAVE yourself, Oi!
I taught several of our first ponies to "shake hands" but stopped 30 years ago when we had an excitable Arab x, in case he stomped on someone by mistake, and I haven't taught it since.
Lots of the communication though is body language or touch or both, not needing words. For instance, Mickey will run to me and sit down if I stand to attention with feet together and look at him, and he does Sit and Down to hand signals as well as to voice. Dog, cat and ponies tell me a lot by posture and the positions of ears, eyes and tails, and, in the ponies, the tightness of their lips, nostrils and chins.
That was more cheerful, wasn't it...