to choose how to share your information. The choices vary depending on the app you’re using. Additional options may appear if you’ve downloaded apps with sharing options. For more information, see App extensions.In many apps, you can tap Share or to choose how to share your information. The choices vary depending on the app you’re using. Additional options may appear if you’ve downloaded apps with sharing options. For more information, see App extensions.
Use Twitter, Facebook, Flickr, Vimeo, or other third-party apps with sharing options. Sign in to your account in Settings. The third-party sharing buttons take you to the appropriate setting if you’re not yet signed in.
Customize the way you share, view, and organize your information. Tap the More button, then touch and drag 
to move items to new positions.