Any mysterious potion left unattended in the middle of a classroom would catch Zadie's attention, but the fact that this one has her name on it and is definitely not Felix Felicis (the color is all wrong!) has her doubly invested. And maybe a little worried. Is someone trying to slander her name? Is someone trying to frame her? She takes the vial with her to prevent it from falling into any careless hands and resolves to analyze it later to determine what it is.
PRANKSTERS: Felicity Pt. 2, Electric Boogaloo
Maybe she should ask her friends about it too!
What a strange turn of events...