BIGBIRD demonstrates empty & full by showing that HISNEST is empty. While he turns away to demonstrate with a bowl of fruit & a glass of milk, Bob & the kids have quietly gathered in HISNEST, making it full.
Alice returns from her job interview; it’s time for Georgie to go home now, but she doesn’t want to leave OSCAR. When she won’t stop crying, Olivia tells OSCAR the only way to make her stop is to invite her back to play again. He reluctantly does so, & gets a kiss from Georgie. He’s disgusted even more when Olivia suggests the two of them go into the babysitting business together.