The animal that trusts you is depending on something it cannot put into words.

Trust from an animal is not a compliment you earned once; it is an ongoing bet placed with no ability to negotiate the terms. A dog cannot ask why the walk is late, and a cat cannot tell you the new food hurts. They read your habits and assume the pattern will hold, which means your reliability is doing work that language would otherwise do.

Look at the parts of your animal’s day that depend entirely on you remembering. Keep those steady even when the rest is chaotic, and notice changes in behavior as the closest thing to a sentence they can offer.