How do you actually go about discovering a thing like that?
你到底是怎麼發現這種東西的？
He is not entirely clear on how he will go about it
他還沒完全搞清楚該如何處理這件事。
I want him back, but I just don't know how to go about it.
我想讓他回來，但就是不知道該怎麼做才好。
He used to go about in a black cape
他以前常穿一件黑披風。
How did you go about making this marvellous acquisition then?
那麼你是怎麼買到這一絕品的？