QQ is a IM like msn or oicq, it is the most IM in china,so if you want to touch a chinese girl quickly, I guess you should to dowload a qq , it has a english version here you can install it.

http://download.imqq.com/download.shtml

And then if you have more question,you can add me friend in qq,my qq number is1115702771, maybe i can give you some good advises.