A check on the Forum search will reveal all kinds of threads on Busking, with lots of advice. The only advice I have as a consumer is that the people I most often give money to are people that sing or play something that is relevant or fits the mood of the place they are in. Standing in Paris playing Beatle songs will, I guess, get you some tourist money; but I have given big money to people playing well chosen Paris songs in Paris just because it was so perfect: it made the mood that much better. It may bore the crap out of Parisians, but you play Edith Piaf to me on a bridge over the Seine, and I am yours. Same is true in London, New York,Quebec City, etc.

yours, Peter T.