OOC: She could always talk to Veronica, they were/are in the same house. (Actually, they might have more in common than Nagini would with a lot of the others now that I think about it a little more.)
Veronica: Veronica sat back in her chair. She had gotten to the last stage of the potion, now she just had to let it brew and stabilize itself.
Lucas: Luke continued making the potion, not nearly as close to being done as Veronica.
Ivy: Ivy was in between Veronica and Luke in terms of being close to finishing, as well as, when she thought about it, in terms of expertise in potions.
Professor Claybourne: She was walking around the room, observing everyone and ready to help or answer questions if needed.