How long have you been busking?
How long have you been playing your instrument?
Have you ever run into any trouble with police?
How would you say people respond to your playing?
Do you have a job aside from busking?
Do you communicate and/or coordinate in any way with fellow buskers?
How many times a week do you do this? For how long per day?
(If the performer is not performing for money) What drives you to do this?
Is there any animosity between performers?
Have you ever gotten any recognition beyond someone simply acknowledging you?
Theres a lot more I’d like to know, and I’ll continue to add to this list as time goes on.