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've been & am absurdly over-estimated. There are no supermen & I'm quite ordinary, & will say so whatever the artistic results. In that point I'm one of the few people who tell the truth about myself.”
“The only things that haven't worked for me are when I've held back. There's no reason to sell an idea short. The only risk would be to not fulfill the dream.”