You can make changes to your privacy settings and select a minimum relationship that readers must meet to see your profile information.
You must be logged into your account.
Once logged in, look in the upper right hand corner of any page and click your name, then click "Settings" from the dropdown menu.
Once that page loads, scroll to the bottom of the page to "Privacy Settings" and then make changes for: Contact Info, Profile Picture, About Me, Friends, and Contact Me. Then, Save All Settings.