Heck, it's about time we made this an official Rule of Cuteness. What took so long? I mean, this one is so obvy. This one is also known as "Princess Di" eyes, since she was so good at it. Of course this rule should also be known as "puppy-dog eyes"—same deal.
Accordin' to sender-inner Sydney G., "John Bailey" the bun is "ready to go public" with this photo. LOL!