go about business

go about your business

to do what you usually do How could she make such a big mistake and then go about her business as if it never happened?
Related vocabulary: go about something/doing something
See also: business
References in classic literature ?
You know very well how to go about business matters," he used to say, with a sort of affected moodiness clouding his serene round face.
Assistants' insistence: While the players gossiped with reporters about who the next coach might be, the assistants tried to go about business as usual - even though many of them probably will be out of work after the bowl game Christmas Day against New Mexico.