Players' pets could interact with each other within the "friend" network. Pets could visit the pets of their owner's friends and perform activities with these pets (washing, grooming, feeding, etc.) A pet could visit other pets as many times a day as it wished. The players received coins and Paw Points on their first visit of the day to each friend,[6] but earn only Paw Points for subsequent visits. Participating in the Daily Lottery, visiting friends, winning awards, cleaning or playing with pets, winning hurdle races, or betting on the outcome of hurdle races also provided players with ways to earn coins. Visiting friends, buying items, and using the stadium earned players Paw Points. Paw Points were akin to XP/EXP (Experience) in other social games of the sort; gaining sufficient paw points made the pet level up. When a pet leveled-up, the player received coins, new features and special statuses. During Pet Society's initial release, there were 34 levels. In 2009, after houses were enlarged to accommodate 10 rooms, 13 additional levels were added, bringing the total to 47. In August 2010, the level cap of Pet Society was raised to 100. Some certain items were required to be bought at a certain level.