Connect with your friends and build new friendships with Trainers that you meet along your Pokémon GO journey. As you play together, you’ll increase your Friendship Level and unlock extra bonuses. You’ll also be able to send Gifts and trade Pokémon with your friends. Once you become friends with another Trainer, you’ll both be able to see each other’s Trainer Profile through the Friend List. This information includes your Avatar, Buddy Pokémon, Team, number of Pokémon caught, most recently caught Pokémon, Trainer level and XP, Distance Walked, and the number of Battles won. If you decide that you no longer want a friend to see this information about you through their Friend List, you may simply remove them.
Source: @PokemonGoApp
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