它原来叫做“躺下游戏”，起源于2000的U.K.朋友间的活动。 2007年facebook为其设立了小组。
Originally called the "lying down game," it started in the U.K. in 2000 between friends and transferred to a Facebook group in 2007.
朋友们群间交流信息，或是线程，有时会选定某个他们认为应得到更多关注的问题，一活动者说道。
Groups of these friends, who form new conversations, or threads, sometimes decide on a topic or an issue that they feel is deserving of more attention, the activist said.
朋友间应该能够参与彼此的活动，给予对方类似的东西。
Friends should exchange similar activities and give similar things to each other.
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