How are you, Verity?

"Verity is bubbling with excitement about an upcoming school field trip to the aquarium! When neighbors ask, 'How are you?,' Verity shares . . . fascinating facts about sea animals. Verity's older brother John kindly suggests that the question 'How are you?' is actually a greeting and not an invitation to share so much. Verity plans an experiment to find out if their brother is right. But when the trip to the aquarium is cancelled, Verity is heartbroken. When people ask 'How are you?' what should they say then?"--Provided by publisher.