Big Bird calls Mr. Hooper and the kids over to inform them of the new word he invented - "YO," used to describe the action of rubbing one's tummy and hopping up and down at the same time. Mr. Hooper points out the word already has a meaning - it's the Spanish word for "I." Big Bird is disappointed, but manages to create a new word to replace it - worple. Cartoon- A mouse tries looking for his pet, describing to his friend what they did yesterday. Bert wants to know why there is a cookie lying on the table. Ernie explains that he put it there to remind himself.
—hammerhead-dk