Stay True to Your Nerdy Friends
From the moment Harry first met hapless, round-faced Neville Longbottom (who was searching for his lost toad), he's been kind to the timid Gryffindor. Harry has been loyal to daffy Luna Lovegood and to Dobby, the often irritating and unconventional elf. And Harry defended his best friend Ron Weasley when everyone else was furious with him for his poor Quidditch skills.
All these characters have stuck by Harry in his hour of need, in some cases saving his life. The lesson: No matter how tiresomely they rave about Crumple-Horned Snorkacks or make you examine plants that squirt Stinksap, don't disown your true friends.