Tapping her quill on her cheek amusingly, because Louisa liked the subject and was amused already, she heard what her classmates had to say about it. Few firsties were right on the track as well. Good. Raising her arm as high as she could, Louisa answered, "I think young students should learn the very first rule of casting a spell. About incantation, wand movement and intention. That those three are the general conditions of any charm, spells and hexes alike." If she was a teacher, she'd teach this to the youngsters. Uh-huh.