|"It's extremely friendly toward you. It couldn't possibly love you more. It's a pleasure to see!"||255|
|"It seems to be very happy. It's obviously Friendly toward you."||200-254|
|"It's quite friendly toward you. It seems to want to be babied a little."||150-199|
|"It's getting used to you. It seems to believe in you."||100-149|
|"It's not very used to you yet. It neither loves nor hates you."||50-99|
|"It's very wary. It has a scary look in its eyes. It doesn't like you much at all."||1-49|
|"This is a little hard for me to say...... Your Pokémon simply detests you. Doesn't that make you uncomfortable?"||0|
There are many different ways to increase the happiness of a Pokémon, including walking or running for a long while with the required Pokémon in player's party, levelling up, and using items on Pokémon. On the other hand, fainting and usage of herbs will cause the Pokémon's happiness to plummet, while trading resets the Pokémon's happiness to the base value unless it is traded back to its original trainer, which its happiness will be restored to the value before being traded.
Some items affect the amount of happiness Pokémon gains from an activity. They are Soothe Bell, Luxury Balls and Friend Balls, but only Luxury Balls are currently available in-game. Luxury Balls are sold in Poké Ball Emporium, Anthian City - Shopping District. Soothe Bell is a held-item that doubles the happiness value gained, while Luxury Balls are a variation of Poké Balls that have the same effect of Soothe Bell for the Pokemon caught in these balls. Friend Balls are another variation of Poké Balls that automatically set the base happiness value of Pokémon caught in these balls to 200, making them much closer to evolution. Soothe Bells and Friend Balls are not in game yet.