How to sync iPhone contacts with Facebook?

I want to add facebook pictures to my iPhone 5's contacts but I don't want it to add the people I'm friends with on Facebook that are not already in my phones contacts. Is there a way to do this?

Go to The Facebook App When you Open it it will Ask you if you Want to Sync Contacts with your iphone it will Only Ask this once if it doesint appear you may have already answered no or you have already responded and asked it to sync your contacts or if you Skipped that message and you don't see it go to Friends than Go to Sync than its going to Ask For a Agreement Agree to it and it should Start Syncing if your Still Confused See This Guide

http://www.maciverse.com/sync-your-facebook-friends-with-iphone-contacts.html

it Even Shows in Pictures what to do