1.
The way you go about a task or problem is the way you approach it and deal with it.
I want him back, but I just don’t know how to go about it.
PHRASAL VERB : V P n / -ing
2.
When you are going about your normal activities, you are doing them.
We were simply going about our business when we were pounced upon by these police officers.
PHRASAL VERB : V P n
3.
If you go about in a particular way, you behave or dress in that way, often as part of your normal life.
He used to go about in a black cape...
He went about looking ill and unhappy.
= go around
PHRASAL VERB : V P prep , V P -ing