Philip sees his life as Philip Jennings to be his life - he cannot be completely honest about who he is, but he doesn't create a personality/character to be when he is Philip. He lets his interests and character show. He sees himself as a sort of immigrant with a new life in America with his wife and kids. He lets Misha and Philip be as much of one as they can be.

Elizabeth sees Elizabeth as another persona. The only time she's who she is, is when she's with her kids or working with Philip/alone with Philip. But then she's Nadezhda. Elizabeth is a job. America is a job.

The Rezidentura are very detached from American life, as detached as they can be while living there. They can't be in love with the culture or else their commitment might be questioned. They can like aspects (the music, the food) but at the end of the day, I think they feel isolated from American culture.