For Mor-Mor

While we were at the beach in May, Mor-Mor taught yet another child the little game that begins, "Knock on the door..."   Miles loved it then, and has repeated it over and over and over ever since.  It has become one of his favorite.... what do I call it?  Non-rhyming poem?  Rhythmic saying?  Face-hitting game?

Anyway, Mor-Mor, I thought you might like to see your birthday-buddy from a distance, getting a little silly with it.