Mizurus boru..? After one minute of deep staring at the ceiling, she remembered hearing this spell in Transfiguration. When they were taught to light a fire and then blow it out. Anyways, a feather appeared close to her desk and started swirling in the air slowly downward, "Wingardium Leviosa!" She said swishing and flicking her wrist skillfully.

Meh, practicing it on feathers was boring. It made more sense and felt so good when Dal did it on her at the treehouse. She might mention that fun method of learning to the Professor when the review was over.