Boo looks at Sam in one of his Boo Boxes, both a little proud that for once he could teach big brother a new trick instead of the other way round, but also realizing the box he wants might now be occupied. Fortunately for Boo Sam only sleeps in the boxes on occasion, plus Boo generally prefers the smaller boxes while Sam only likes the big ones.
From December when I was playing around with the Nikon.