What a simple word, yet SO refreshing to hear! Cooper hasn't started talking, but he now signs thank you all the time! I will give him something and he will grab my shoulder to get my attention just to tell me "THANK YOU!" It completely melts my heart and is so genuine. He not only knows when to say it, but he wants me to know that he is saying it! I guess when you're dealing with a 3 year old and her attitude, a simple sign of gratitude is much appreciated!