Keep your nose clean, and don't get involved.

你要安分守己，不要卷到那里头去。

《新英汉大辞典》

If you keep your nose clean, the boss might promote you.

你若是规规矩矩的，老板就可能提拔你。

youdao

If you keep your nose clean, the boss might promote you.

你若是规规矩矩的，老板就可能提拔你。

youdao