He tries to keep his private life and public life 'separate' (from each other). = He tries to keep his private life 'separate' from his public life.
('US') He fell and 'separated' [='dislocated'] his shoulder. [=caused the bone in his shoulder to move out of its proper position]
The competition has been easy to this point, but now it gets tough and we'll really begin to 'separate the men from the boys'.
(..) Javeed over there is my ex-room-mate. Yeah, but I drove. Eric Schmidt, Erlich Bachman. It's amazing how the men and women at these things always separate like this. Yeah, every party in Silicon Valley ends up like a hasidic wedding. Not even the Goolybib guys were talking to girls. (..)2014 TvShow: Silicon Valley Title: Minimum Viable Product Season: 1 Episode 1