Final answer:
American fans often engage in cosplay as a form of fan media, while Japanese otaku culture centers on the circulation of doujinshi. The globalization of fan culture includes the international spread of Japanese and Korean pop culture, highlighting the multidirectional sharing of cultural elements.
Step-by-step explanation:
American fans are more likely to engage in cosplay variants of fan media and production. In the American context, fans often physically embody their favorite fictional characters from various media, including comics, movies, and anime, which could be illustrated by the practice of cosplaying as DC Comics characters. In contrast, Japan's otaku culture is deeply rooted in the collection and circulation of various fan-made media like doujinshi (self-published works), which are more focused on character-centric narratives and often extend existing stories or create alternative ones. This highlights a clear distinction in fan culture practices between the two countries.
The influence of diverse global cultures is evidenced by the growing popularity of Japanese anime and manga, Korean pop culture, and serial thrillers like Squid Game. K-pop, despite borrowing from American cultural styles such as hip-hop, manages to include distinct Korean elements that appeal to international audiences. Globalization thus reflects a multidirectional sharing of culture, rather than a singular imposition of American popular culture.