Changing your Privacy settings.

To change your privacy settings on your account so you can customize who see's what of your profile, posts excetra. Follow these steps:
First click the gear icon on the top right beside your profile picture
Next click on privacy settings in the dropdown menu:

Which loads the privacy settings page: You can customize this to allow all, friends, friends of friends etc to be able to view the content:
Make sure to click save changes when you have the settings the way you want!