Project Laughter

We were walking around school during lunch."No, Mrs. Dorine said we have to explain what laughter is." Joey said. "Well should we head to the library and start the display?" I asked. They all agreed and we headed to the library. "I'll go get the things with Jessica" Devin said. They went off. We sat down on the bean bags and started to discuss what we were going to do. "Laughing is a reaction. so we can explain all types of reaction, we'll have reactions relating to laughing like, giggling, cackling and more'' I said. The door opened and then....