As a busker, one thing that does not work is self-consciousness. A busker needs to be working. A busker needs to shed all ego and get down to work. Play your songs, play them well, earn your money, and don't get in people's way.
“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 o”
“It is a mistake to think that we can control the breeding of mankind in the long run by an appeal to conscience.”