Beverly observed Bellaire critically, taking in everything from the wand movement to the incantation, and made mental notes. Since this was a complicated spell, she wanted to make sure she understood the visual of how it's done. Once the demonstration was done, Beverly turned toward her little puff of cloud.

She eyed it. Then tapped her wand against her chin. It was going to listen and do as she say. There was no other way. Simply wasn't.

The Slytherin decided to start with getting a grip of the incantation first. No need to produce a tornado or hurricane. "Stiri-ci-dium...Nu-bi-la..." She felt like a freaking five year old. But she MUST get it right. "Sti-ri-ci-dium...Nu-bi-la."