Kuai Kuai culture is a phenomenon in Taiwan wherein people put snacks of the brand Kuai Kuai (Chinese: 乖乖; pinyin: guāiguāi; Wade–Giles: kuai1kuai1) next to or on top of machines. People who do this believe that, because the name of the snack—"Kuai Kuai"—stands for "obedient" or "well-behaved," it will make a device function without errors.[1] As such, it can be commonly found in myriad places of work in Taiwanese society. A rigid set of best practices has arisen surrounding the proper use of Kuai Kuai snacks, such as using green bags only, and ensuring the snacks are not expired.[2]