The other morning, Luke sat in his high chair waiting for breakfast. As usual, I began by filling his cup with water. When I gave it to him, he said, "thank you!" It was the first time he said it without prompting or simply repeating it. I was so excited to hear my little guy using manners already! So now we are working on please, both the word and the sign. I didn't feel like I taught him to say thank you, but I guess it all goes in. It's probably just repetition and imitation, and now I am so glad I use manners myself!