Doggy. Cat. Tortoise. Three words I think I forgot to mention below that are known by my girl with floppy ears and that definitely get a response from her. Doggies are more generally interesting, rain or shine. Tortoises can be a particular hobby or obsession. Cats are of interest, though generally less so than either doggies or tortoises. My girl will judge a cat on its individual merits: one cat that was very calm and receptive to everyone seemed to be like Valium to dogdom: there was nothing to do but look at her with a kind of wonder. Other cats get Chummy going as if they had a Dinner -- Just Kidding! sign on them. Tortoises inspire great curiosity and fascination. Beyond that, it's all in a dog's mind.