(1) reporters went to large cities all around the world. They went to (2) countries. In the survey, they tested (3) people. The reporters did three things: (4) , the paper drop test, and they looked at (5) . For the door test, thet wanted to see if people would (6) for the reporters. For the (7) , they wanted to see if anyone would help them pick up (8) . For customer service, they wanted to see if people who work in stores were polite: if people did courteous things like saying (9) and (10) . In the most courteous city, (11) percent of the people passed the door test. When the reporters dropped their papers, only (12) percent helped pick them up. For customer service, (13) out of 20 people said "tahnk-you." When the reporters asked them, some people said they do it because it shows (14) . (15) was the most courteous city.