"no" with sass, "yes" with sweetness

This kid! He has changed so much in the last couple weeks! Some new challages for mom and dad. When he says NO to something, it is very brisk and you can tell he means it, "this is how it is" sort of no. It is so sassy! But when he says YES, it is clear, soft, sweet and obediant. He even gets the right look in his eye when he says Yes.