Saying the magic words properly is very important, too - never forget Wizard Baruffio, who said "s" instead of "f" and found himself on the floor with a buffalo on his chest.“Flitwick: "There you are! We've been looking everywhere for you two. Now, names?"
Harry: "Professor Flitwick, you've known me for five years."
Flitwick: "No exceptions, Potter!"Thank you so much, Professor! I could have got rid of the sparklers myself, of course, but I wasn't sure whether I had the authority.As long as the Secret-Keeper refused to speak, You-Know-Who could search the village where Lily and James were staying for years and never find them, not even if he had his nose pressed against their sitting room window!The diadem of Ravenclaw? A little extra wisdom never goes amiss Potter, but I hardly think it would be much use in this situation.Now, now, boys. A little less talk, a little more action... Let me see you try.Hogwarts should be Dumbledore's final resting place.You'll do no more murder at Hogwarts!You realize, of course, that nothing we do will be able to keep out You-Know-Who indefinitely?Don't forget the nice wrist movement we've been practicing, the Swish and Flick!Quills down, please! That means you too, Stebbins! Please remain seated while I collect your parchment! Accio!Quotes about Filius Flitwick
Speaking of eccentrics, you'll like our Head of house, Professor Filius Flitwick. People often underestimate him, because he's really tiny (we think he's part elf, but we've never been rude enough to ask) and he's got a squeaky voice, but he's the best and most knowledgeable Charms master alive in the world today. His office door is always open to any Ravenclaw with a problem, and if you're in a real state he'll get out these delicious little cupcakes he keeps in a tin in his desk drawer and make them do a little dance for you. In fact, it's worth pretending you're in a real state just to see them jive.Professor Flitwick knows more about Entrancing Enchantments than any wizard I've ever met, the sly old dog.Professor Flitwick took the register, and when he reached Harry's name he gave an excited squeak and toppled out of sight.His name is Voldemort. Filius, you might as well use it. He's going to try to kill you either way. 
