Well, so far there are 18 (the rules keep on coming
); i'll put the first five here^^:
Rule of Cuteness #1: Put your paw up
Rule of Cuteness #2: Look helpless
Rule of Cuteness #3: an Inquisitive Look
Rule of Cuteness #4: More than one species of baby flopping around is cute
Rule of Cuteness #5: Fisheye lens + baby animal is always cute
What do you think? ^^