The first time I saw a Korean panhandler, I was really shocked at the way they position their body. They are on their knees with their heads facing the ground with only their arms to rest on. It has to be unbelievably uncomfortable. The panhandlers I've seen on the sidewalks always seem to be wearing some type of waders which cover their legs and probably are meant to protect them from the elements. I have only seen panhandling in Seoul. They will be in the middle of very busy sidewalks and also on the steps going in and out of the subways. I've never seen them with a sign.
A panhandler in my part of the U.S. usually stands on a busy street corner holding up a cardboard handwritten sign. In Korea, I have often seen Koreans drop money into the panhandler's basket but I haven't seen the same in the U.S.