Define costume play plainly. Cosplay involves dressing up and pretending to be a specific character from a comic book. This trend has immensely popular among enthusiasts of nerd subculture around the world. People diligently craft costumes and props that accurately reflect their favorite characters. Cosplayers usually participate in conventions or cosplay events, where they can display their artistry and connect with others who share the same passion. Ultimately, cosplay is an expression of appreciation and dedication for the fictional character and the love for the nerd community.