-If you have defined some groups, you can check "show" for groups also. All contact in that group will see the post.
-If you want to hide the post to one contact of a group selected for "show", click "don't show" under contact name.
+If you have defined some circles, you can check "show" for circles also. All contact in that circle will see the post.
+If you want to hide the post to one contact of a circle selected for "show", click "don't show" under contact name.