Cold and Hot

I suppose Shawn is able to tell the difference hot and cold now. Like when we serve his dinner, he always say hot and we always let him touch the bowl to let him know that the food is hot and therefore he has to wait. Occasionally when we serve soup later part of his dinner, we would ask if the soup is hot or cold. He would usually reply cold. I would let him touch my glass of milk from the fridge to let him know that it's cold vs his own milk which is not so cold.