Biểu diễn trên đường phố. Thu gom phế liệu. Săn đá. Bán chai nhựa để kiếm tiền. Bán tóc.

I'm interested in that, but I only have a few mins. Can you give me at most the first 500 characters of a detailed explanation in English about that?
If you're lucky enough to own an instrument and talented enough, busking is the art of musical street performance. A good busker in a busy spot can make a nice little pile of cash in an hour or two of playing. The following are some helpful tips for busking:  Get permission. Some cities and communities have ordinances that require a permit or fee for street performance. Choose a good location. Avoid areas where there are other street performers but still have high traffic. Choose busy downtown a