Nothing melts your heart faster than when your dog (or any dog, for that matter) tilts their head to the side and looks up at you with that quizzical expression. It's the most adorable pose in the canine repertoire. You feel compelled to rush for the camera, or treats - or both. But why do dogs tilt their heads? Is it nothing more than doggie charm? Or is there something else going on? We'll get into all of the details of this cuteness.