Catch as many Pokémon as you can to earn Experience Points (XP) and increase your Trainer level. Each capture awards XP based on the kind of Pokémon caught, whether you’ve caught that Pokémon before, and the accuracy of your throw.
Touch your avatar in the lower left corner of the Map View to see your level, and scroll down to see your achievements. Earn additional Badges by hitting milestones in each category. For example, this Trainer needs to walk about 6.5 more kilometers to earn the bronze Travel Badge. and register 33 more Pokémon to her Pokédex to earn the silver Pokédex Badge.