That's a large part of why these smiling dog memes are so effective. The other part? They're just out-and-out funny. We challenge you to look at them without breaking into a wide smile ...

but one pup named Grey has turned the tables by mastering the art of smiling himself. In an Instagram video shared by @greythedalmatian_, the Dalmatian dog’s happiness is on full display as he ...

In a viral video, Django, an adorable dog with a big personality, tries his best to flash a picture-perfect smile for the camera — though the result is more awkward than effortless. The short ...