Have you been working out lately? You look good.

你最近健身了吗?你看上去真棒。

I usually work out after work.

我下班以后通常去做运动。

重点讲解:

I usually go to the gym after work.

I usually work out after work.

健身可是个保持健康的好习惯I usually go to the gym after work.表达“我下班以后通常去做运动。”语法上没错，go to gym就是“去健身房”，但是口语 中老外常用work out表示“健身”，所以这句话可以简单地说成：I usually work out after work.