Cosplay is short for Costume Play. Although the majority of costumes are of anime and video game characters, it could be a costume for anything. You could dress up as a dog and it would still count as cosplay.
ni hao kailan
Tolee, Hoho, Yeye (don't know the spelling), Mr. Bakery
Ni hao Ni hao bu hao
"Ni Hao" means "hello" in Chinese. To respond, you can say "Ni Hao" back.
Hao! wo hen hao, ni zhenme yang ?
'ni hao ma' means 'how are you' and 'bu hao' means 'not good'
你好 ni hao
ni hao pronounced knee how
Kailan is Chinese, not Japanese. ^^
Ni Hao is hello Ni Hao Ma is how are you
ni hao
Ni Hao is Chinese for hello...is that what you wanted to know?