Also, my colleagues during said trip were having dinner in a restaurant that had perfectly clean glass windows and doors. A korean parked his car outside and proceeded to walk into the restaurant but instead he walked face first onto the clean door because it was so clean. It left a stain on the glass - a print of his face. My colleagues said the guy then walked away to his car and after a few minutes came back with a bucket of water and a piece of cloth, then started cleaning the stain and the glass immediately around it. He then went back to his car and then came back into the restaurant and ordered his food.
During the same trip, a colleague left her phone in the public toilet, and realised that she had lost it when she came back to her hotel. She called her number and a Korean answered. The korean then offered to meet her and give her back her phone. And the korean came to the hotel lobby to do just that.
During my own trip I met a lot of friendly and helpful koreans, to be honest I have never been to a country more welcoming than Korea and I’ve travelled to many places. The streets are just so clean.