Every Dog does that all the time..it's not special, he bark's or pushes me with the nose, i ask food? If he look's down with his eyes rolling to the left as if there is a virtual bowl i know he want's food, if its not food he goes to the door and pushes the door with the nose, if cuddles he presses his body against my leg. The only difference here is that this poor dog had to learn howto use color buttons because his (former?)-owner (probably) cannot interpret his face or gestures.