As tweeter @SimonNRicketts says: we have no idea what this woman is saying to her dog - but we just love his sad face.
Of course, the whole (Slovakian, apparently) thing is given extra pathos with the addition of sad, tinkly piano music. It's like 'Derek'. With a dog.
But enough of this! How about 20 happy dogs to cheer us all up, eh?!