As it's been the case in other tournaments, Japanese fans cleaned up their sections and took out the trash after the 2-2 World Cup draw with the Netherlands in Dallas.
This time, however, they were also joined by New York Giants back-up quarterback Jameis Winston, who's working as a correspondent for broadcaster Fox Sports during the tournament.
Japanese fans have been cleaning up their sections in the stadium since 1998, when they made their first World Cup appearance.
They do the same at other major sporting events, including the Olympics.
Japanese people learn this behaviour as early as their school days and are taught in to clean their classrooms and hallways, experts have previously explained.
