Little Critter's class is learning about good manners. LC explains the list compiled by the class of things to say and do that are considered good manners, and when it's appropriate to say and do them, like saying: please, thank you, excuse me; covering your mouth when you sneeze, keeping your elbows off the table when you eat, sharing, etc. He's surprised that some things are considered good manners (like the elbows thing) and has a hard time with others, like saying sorry when he does something wrong. LC describes a day when he tries to remember his manners, sometimes succeeding and sometimes not. The class keeps track of how members behave and LC is pleased to discover that he's doing pretty well. This is a low-key treatment of the subject, filled with sly humor and illustrated in Mercer Mayer's trademark style.