How do I add my Facebook friends on Yelp?

To have Yelp automatically send friend invites to your Facebook contacts who are also on Yelp 

1. Go to the Account Settings section of your account
2. Click External Applications
3. Click Connect to Facebook
4. Turn on Auto friend from Facebook

To disconnect your Yelp and Facebook accounts  

1. Go to the Account Settings section of your account
2. Click External Applications
3. Click Disconnect from Facebook