Again, it depends on the context. If it’s for a one-off event with a lot of people you don’t know, there’s probably no need.
盗窃、损坏、擅自移动使用中的其他公共交通工具设施、设备，或者以抢控驾驶操纵装置、拉扯、殴打驾驶人员等方式，干扰公共交通工具正常行驶的，处五日以下拘留或者一千元以下罚款；情节较重的，处五日以上十日以下拘留。
。同城约会对此有专业解读
It isn’t just celebrities like George Clooney packing up for France. Places like Portugal, Spain, and the Netherlands have seen American expat populations double lately, and Germany and Ireland both received more American arrivals last year than the other way around.
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Lawyers who have looked into the particulars of the case tell Ars that the state faces an uphill battle in convincing courts that this portion of Valve's business legally constitutes gambling. That said, there are a few elements of the case that might make Valve legally vulnerable to the state's arguments.