FACEBOOK TIPS: Categorize your friends into lists.

You have friends but some of them are actually acquaintances and you would prefer they not see some things that you post. You can do that! Edit your friends list to have some of your friends be acquaintances. Then when you post the things you can exclude the acquaintances from seeing your more personal posts.

Go to friends profile, click on the friend icon then select edit friend list

For acquaintances you can select acquaintances for the people you want to maintain privacy with. When you post select to edit privacy

Then select friends except and a search box opens search for acquaintances and select acquaintances

There you go

You can post away!