Here is the letter from last night:
Guess what?! You gave me your first real smiles today! You've been smirking and giving half smiles here and there, but today they were real smiles!
I was wiping your mouth, talking to you and you smiled. So I kept making silly sounds and dabbing at your cheeks and smiling at you. And you kept smiling back! It almost looked like you wanted to laugh! It made ME laugh! I called Daddy over to make sure he saw you too. Can't wait to see that beautiful smile again!