>>20732506This is just copypasted from
BulbapediaThe gift a group of Pokémon will leave depends on their combined affection levels and the Poké Puff that is set out. In general, groups with higher total affection will leave higher quality gifts than groups with lower affection. Gifts can be any interior item or wallpaper, ranging from Set A items for low amounts of affection to Set F items for maximum amounts of affection. Gifts may also be Poké Puffs, with basic Poké Puffs occurring in the same range as Set A items, Frosted occurring alongside Set B, Fancy with Set C, and Deluxe with Set D.
Poké Puffs may be set out to entice visitors to stop by in Pokémon-Amie's decorate mode. The "level" of the Poké Puff that is set out raises the minimum quality of gift that visitors will leave, which simultaneously decreases the amount of affection needed to reach the highest quality gifts. Higher level Poké Puffs will also last through multiple groups of visitors and increase the chance that individual visitors will decide to stay. The table below describes the effects of different types of Poké Puffs.
