Putting on a show

I work with Drew everyday on words, sounds, colors...everything. I make a game out of feeding time or bath time anything to teach him something, but he just looks at me like I'm a fool. I ask him to repeat a word or point to something and he gets this look of confusion on his face. Well last night Kathy from Parent's As Teachers visited us. She showed him pictures of things, told him what they were and asked him to repeat the word....he did! WHAT!....well at least now I know he can!