"It's nice to meet you." Ash says brightly. "Even if.. the circumstance are a little weird." Kidnapped by aliens and forced to help them constitutes as a little weird, right?

"Uh.. Animal?" Ash and Pikachu both exchange a look before Ash turns back to Radley. "Pikachu's a Pokémon-an electric type."

"Pika-pika." Pikachu nods sagely.