Originally Posted by doogald
There are third party apps that can do this, but the stock "People" app does not. This is either a bug or some fallout from an issue that Google had with Facebook about a year ago, when Facebook was asking users to enter Google authentication info to get friends from your Google contacts but would not expose the same functionality to Google for the reverse.
I use an app on my Mac called Cobook that does this for me. I've read about two Play Store apps that can do this on the phone: Ubersync
Don't bother with Sync.me, imo, Ubersync worked well.