They like to attend parties, meet and greets, mixers, and other social functions.
他们喜欢参加各种派对，见面会，聚会和其他的交际场合。

Meet and greets
见面会

The president held a meet and greet with voters two days before the election.
总统在竞选前两天举办了一次跟支持者的见面会。

Stephen King is having a meet and greet at the Marble Hotel this weekend. Let's try to get tickets.
史蒂芬·金这周末会在大理石酒店举行见面会。我们去搞几张票吧。

Mixer
（拓展人脉的社交）聚会

There's a mixer on Friday for all freshmen. I'm gonna go meet some people.
周末有个新生聚会。我要去新认识点人。

My friends organized a mixer for single professionals in Beijing.
我朋友为在北京的单身职场人士组织了场聚会。

Social function
交际场合，社交活动

I don't like to go to social functions alone. It's better if I have some friends with me.
我不喜欢一个人去交际场合。如果有朋友和我一起会更好。

My work has so many social functions and we are required to attend.
我的工作有很多社交活动，我们必须参加。

Think about how a butterfly goes from flower to flower. It’s like that, but instead, a social butterfly will go from group to group trying to meet everyone.
想象一下在各种花之间飞来飞去的蝴蝶。和它很像，但社交蝴蝶式在各种团体中走来走去，想要认识所有人。