I’m a different person at work than I am at home. I tell different jokes. I have different stories. I share different experiences with different people in different ways depending on a host of different factors (e.g., how well we know each other; where we went to school; what our shared interests may be, etc.).
The context in which I know people is different from one person, one situation to the next. By and large, this is a good thing. I wouldn’t want my co-workers to know all that my wife knows and my wife wouldn’t be interested in all that my co-workers know.