Explain cosplay heart in simple terms. Costume play is all about dressing up and pretending to be a particular character from a TV show. This trend has a huge sensation among fans of geek subculture globally. People meticulously design costumes and accessories in order to faithfully represent their favorite characters. Cosplayers commonly participate in conventions or cosplay events, where they can display their artistry and meet others who share the same passion. In the end, cosplay is an form of appreciation and dedication for the fictional character and a love for the geek community.