2. Equip the Pokémon with a Soothe Bell. The Soothe Bell is an item that increases the friendship between a Pokémon and its trainer.
3. Walk around with your Pokémon in your party. The longer you walk with your Pokémon, the higher the friendship between you and your Pokémon will become.
4. Once the friendship between you and your Pokémon is high enough, the Return move will become a powerful attack that is based on the user's friendship with its trainer.