Things You'll Need
Instructions
Evolving Slowpoke
Verify that your Slowpoke is under Level 37 (the level at which it evolves) before beginning your effort to turn it into Slowbro.
Put Slowpoke at the beginning of your lineup so it is first in battle.
Walk through tall grass in an area where you will run into wild Pokemon of approximately the same level as your Slowpoke.
Use your Slowpoke to win battles against these wild Pokemon to gain the experience points you need to reach Level 37.
Allow Slowpoke to participate in battles against other trainers you may come across en route. Even if you don't use it beat every opposing Pokemon, it will still gain valuable experience points for helping defeat the trainer.