Don't hang around those noisy boys!

不要和那些吵闹的男生在一起！

Don't hang around in this district if you can help it.

如果能够的话，尽可能不要在附近闲逛。

Don't hang around with that crowd! They're birds of a feather.

不要和那群人混在一起，他们都属于一个类型的。