Raichu is a part of a Pokémon show where it mimes in time with
Kay's voice over.
Kay and her Raichu were very nervous with each other at first with Raichu's cheeks sparking when it got nervous and then
Kay would flinch at the thought of a potential
Thundershock. They both got over their nervousness of each other and went on to perform together in the Pokémon Showboat's performances.