怎么说呢挺热闹的英语

如果你想表达一个场合很热闹，可以使用下列表达方式：

It's quite lively/animated/bustling here.
There's a lot of activity/excitement/energy in the air.
It's a lively/animated/bustling place.
There's a lot going on/happening here.

例如：

The party was really lively. There were people dancing and laughing everywhere.
The city center is always bustling. There are always so many people and things to see and do.
The concert was full of energy. The band was amazing and the crowd was really into it.