@Shinobukemo@arluzawolf those of us in america just call that "role play". those that are into fantasy or medieval stuff call it "LARPing" LARP stands for Live Action Role Play.
@arluzawolf It's difficult to explain specifically, but it's similar to playing the role of the self you want to become.
And as one way to express that, dressing up is effective.
@Shinobukemo no 8th grader syndrome doesn't have a word in america because people never grow up and we consider that shit normal, look at our politicians