Taught my cat to choose his food.
I grab two sachets of different flavours, he sits down, I hold them above his head while he genuinely looks at both as if deciding, then he'll reach up and put his paw on one while looking at me. He knows he doesn't get food til he does this so is usually very keen.
Sometimes he does struggle to remember at the start exactly what we're doing, but he is MONUMENTALLY thick.
I grab two sachets of different flavours, he sits down, I hold them above his head while he genuinely looks at both as if deciding, then he'll reach up and put his paw on one while looking at me. He knows he doesn't get food til he does this so is usually very keen.
Sometimes he does struggle to remember at the start exactly what we're doing, but he is MONUMENTALLY thick.