The Only Way He Knew How
In reality, animals are intuitive. They might not know how to speak, but they will their best to find a way to transmit their message when they have to. It might mean barking, scratching, and displaying other weird behavior. For Crosby, he wanted to send Miller a message by simply staring at the wall. But why?
A Closer Look
Miller decided to take a really good look at the same spot. When he went to the living room, Crosby barked in delight and came after him. It was nice to see the dog look that happy once more. You see, the poor thing had not been this thrilled ever since the death of his friends.