The Human Highlight of Most Anime/Manga Conventions: Cosplayers!
Okay, so my personal opinion MAY be slightly biased, but I think that the hard work that cosplayers put into their outfits, makeup, hair work, and just about everything else to get the mannerisms, posing, and accessories right is well... staggering!
Of course, I'm also an avid photographer, so having people happily posing in cool outfits is definitely a plus for me!