In the last unit, we saw an animation of a birthday card. We'll now create our own card, making it interactive. We want to create a card that looks like this. There are two characters, a butterfly and a cake. The butterfly is animated, and it looks like it's flying. When the program starts, the butterfly first says hello, it asks how old you are, it then repeats your answer and congratulates you for your birthday, and it finally invites you to blow the candles.