Haha, I tried busking once. I fucked up though, steer clear of this method and you'll have more luck. I decided an afternoon busking with hobos would be fun, so I got some shitty jeans, cheese grated the fuck outta 'em, put on a mustard stained wifebeater and a classic 90's plaid shirt. I preceded to shower in coffee and rolled around in the dirt a couple times for effect. Lastly, I picked up a bottle of Cointreau liquor to harden up my coffee all day. After I had a good buzz on, I scoped out an area next to a bead dealer with a learning disorder. I enjoyed his vibe, so it seemed like a safe bet. Unfortunately, this man had a reputation for hassling men and women of all ages to buy his shitty beads. He was a totally nice guy which is why I stayed there, but the money I made was awful. Moral of the story, fuck hobos. Be yourself!
get a good pick, a few extra sets of strings, and play LOUD. if they can't hear you, you're not getting paid.
i have limited busking experience.. but i think one of the last times i did it: i was at a gas station and the lights went off.. minutes later a bunch of firetrucks went by.. turns out a small plane crashed in and around a CVS made like 5 bucks each tho. not to mention the benefit of the weirdness.
I have quite a bit of busking experience. I find it most profitable to play outside or near bars at night when everyone's had a bit to drink. If someone approaches me and asks to hear a song I'll ask them what they'd like to hear and do my best to fill their request. Sing loud, sing with soul... I only busk when I've had a couple drinks and my heart's in it. Also, I try to stay away from really overplayed songs unless someone asks to hear it. No Hotel California, No Stairway, No Wagon Wheel for me lol.