The other day, I asked my kids (7 and 8 years old) to sign a birthday card for a relative that they had only met a few times. I expected that their misspelled words and child-like handwriting would be appealing to the card’s recipient. What I didn’t expect was for their messages to be full of love: “I love you,” “xoxox,” and hearts dotting each letter "i". Where were these demonstrative notes for a relatively unknown person coming from? Should I be worried about my overly affectionate children?