Pins and Nettie encounter a Chaffinch during their daily exploration. Pins and Nettie love the bird's song but when the bird encourages them to sing along, they need some encouragement. Lesson: There are lots of different ways to join in. Pins and Nettie will explore the very real, very common situation of shyness amongst preschoolers and show that there is nothing wrong with being shy. It's just a different way of being and taking in the world around you.