My human mum used to think she knew me well. If I wagged my tail, she figured I was happy. When I twitched my ears, she believed I was paying close attention. If I tried to climb up on her lap (and, remember, I weigh 52 pounds), she thought I was pretending to be a lap dog.
Then she read Inside of a Dog by Alexandra Horowitz. It was like a whole new world opened to her -- my world. Now she's watching me closely, trying to figure out the real me.
But, I'm still a mystery to her, just like she's a mystery to me.