Don't use it. It's a waste of time.
Julia, I face the similar predicament as yours but I have still resisted the temptation to join for the sake of facebook nerds! I have never opened an account on facebook. For me, email and skype are enough!
No to be honest! Back in 2007-2009 it was nice, but not any more!
You don't use Facebook.
Facebook uses you.
yeah, I was told facebook is blocked on China. However, I think you'll have no problem accessing it using a proxy.