Pokemon GO is going through a big update in the coming days, we will be seeing a new buddy system (training Pokemon by walking with them), a revised nearby Pokemon feature, and trading.
Pokémon GO iOS: http://apple.co/2bMA6L9
Pokémon GO Android: http://bit.ly/2bE3ZyP
Pokémon GO iOS: http://apple.co/2bMA6L9
Pokémon GO Android: http://bit.ly/2bE3ZyP