Big E is 27 months old. Before he could speak we were working on manners using sign language for please and thank you. He mastered those and to this day still does the sign for please when he says it.
Now that he is a talking machine I prompt him every time he asks for something with what do you say?
After I give him the object of his desire (most likely food) I prompt him again with what do you say?
This morning he asked for something and before I could even prompt him he said it.
Thank you, mommy!
I plotzed. Finally, my relentless good manners beatdown sunk into his stubborn toddler brain. I was so proud.