The Fun motive can be fulfilled in many different ways. Like Comfort, if a Sim isn't having enough Fun, they will become grumpy and morose, and may refuse to go to work or do other chores.
 How To Resolve
Different Sims have different favourite activities; it all depends on their star sign. For example, Playful Sims may enjoy playing on a game console or watching television, where more serious Sims may prefer to read a book or to play a game of chess.
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