I think what is British about me is my feelings and awareness of others and their situations. English people are always known to be well mannered and cold but we are not cold - we don't interfere in your situation. If we are heartbroken we don't scream in your face with tears - we go home and cry on our own.
Actors always talk about taking their work home and I always think: 'What are you on? You just turn it off. You are at work and then you go home.'