and anxiety, he would wag his tail and lick my face, whereupon I would give him the laugh. He hated to be laughed at, and promptly he would spring for me with good-natured, menacing jaws, and the wild romp would go on. I had scored a point. Then he hit upon a trick. Pursuing him into the woodshed, I would find him in a far corner, pretending to sulk. Now, he dearly loved the play, and never got enough of it. But at first he fooled me. I thought I had somehow hurt his feelings and I came and knelt before him, petting him and speaking lovingly. Promptly, in a wild outburst, he was up and away, tumbling me over on the floor as he dashed out in a mad skurry around the yard. He had scored a point.
After a time, it became largely a game of wits. I reasoned my acts, of course, while his were instinctive. One day, as he pretended to sulk in the corner, I glanced out of the woodshed doorway, simulated pleasure in face, voice, and language, and greeted one of my schoolboy friends. Immediately Rollo forgot to sulk, rushed out to see the newcomer, and saw empty space. The laugh was on him, and he knew it, and I gave it to him, too. I fooled him in this way
