Something that looks funny and uncommon to the western, about the chinese cam girls, it is they do naked karaoke, often with blue or pink hairs. They have big dj microphone there all the time, use "hall" sound effects and star falling video effects and so on.
Adult feeds are shudown and unstable, but you can get an idea from mainstream feeds, simply the girls do same but naked:
http://v.6.cn/
http://v.guagua.cn/
http://xiu.56.com/
http://www.9see.com/
This is quite different from western cam sites (and yet another kind is japanese...).