Gretchen explains the rules of the lunch table to Cady. The rules cover how each member of The Plastics should behave and dress on different days of the week. If an individual doesn't follow the rules, then that person will not be able to sit with The Plastics at lunch that day.
Eric visits Cory's class to give a talk on peer pressure. He shares that, next year when they move into seventh grade, there will be a large population of kids they have never met before who may think differently from them. Eric warns them that they may be pressured by their peers to make poor decisions.
Leonard asks for a volunteer to demonstrate the pigs' last gift to the birds, a slingshot. Since Red was disruptive during his presentation, he chooses Red, who is reluctant to participate. His fellow birds and the spotlight pressure him to participate.