How do you get swagger in Pokemon light platinum?

In Pokémon Light Platinum, you can obtain the move Swagger by leveling up certain Pokémon that learn it naturally. Specifically, Pokémon like Zubat or Golbat can learn Swagger at level 15. Additionally, you could also teach Swagger through TMs if available in your version. Make sure to check each Pokémon's move set or the TM compatibility in the game to ensure you can teach it.