"K" is for Kasen

Tonight I was bathing Kasen and he was playing with the sponge letters. He would grab a letter and say what letter it was and then put it up on the side of the bath tub. When he came across letter K he said "K, for Kasen". When ever we were teaching Kasen the letter K we would say, K, for Kasen. It is amazing, when you really don't think they are paying attention, they really are.