He started making his vroom, vroom noises as he imagined he was riding along. The goats bleated in the background, making for quite an interesting cacophony of sounds.
Even though Desert Boy didn't move the wagon anywhere, he was happy. He's generally a very happy little boy.
Later we decided to play another game--Desert Boy would pull his Mama sitting on the wagon. He grabbed hold of the wagon handle and pulled with all his might. There was a little too much friction to get the wagon going, so I gave a little push with my legs.