How do people usually dress for these conventions?

[KimHeroin]

Some dress up but not everyone. I've seen people dress up in anime, comic book characters, people from movies, video game characters, in different fashions [goth/cyber-goth/Lolita/j-pop]. Really you can dress up as anything. Some people even dress up as there Gaia avie. But no, you are not required to dress up it can just be fun but honestly, you can dress up as whatever you'd like