“气氛组”是一个网络流行词，指那些专门负责活跃气氛、让场面更热闹的人。

"气氛组" is an internet buzzword referring to people who specialize in livening up the atmosphere and making the scene more lively.

比如在聚会上，有人不太会做事，但很会带动大家开心，就是气氛组。

For example, at a party, someone who may not do much but is great at getting everyone happy is the 气氛组.