That's So Raven S02 E07 Close Encounters of the Nerd Kind

"She can see the future. But she can't quite see what's coming next."

When Raven gets invited to a convention for Devon's favorite show she doesn't want to go, but when she has a vision that Devon is nuzzling another girl, Raven,Chelsea&Eddie crash the convention. Meanwhile,Since Willam thinks Cory is psychic(thanks to Cory not telling Willam about Raven's vision about finding Willam's rabbit)Cory goes along with it and hits pepole up for cash to read people's pets minds.