smarten

You need to smarten (yourself) up before you go out.

你应打扮一下再出去。

You’ll have to smarten up if you want to pass those exams.

你通过考试，思维就必须更加敏捷。

She did her best to smarten her husband up.

她尽最大努力把丈夫打扮得更英俊。