Getting invited to a friend's house for the first time is a rite of passage. It is also a quiet little test that most kids are never actually prepped for. Nobody hands a seven-year-old a manual on how to behave in a house that is not their own. And here is the thing. Being a good guest is a real, learnable skill, and it is the single biggest factor in whether your kid earns that magic phrase from another parent: “Can they come back?” So here is the field guide for how to be a