go about your business

go about (one's) business

To continue doing one's usual tasks. Oh, don't pay any attention to me, just go about your business. Go about your business, people. I'll let you know when we can start the meeting.
See also: business

go about your ˈbusiness

be busy with the things that you do every day: He looked out onto the street and watched the people going about their daily business.
See also: business
References in classic literature ?
When the rest of your friends are transformed you can return to the upper world, and go about your business.
Ay, go about your business, I hate the sight of you.