Answer by RafalChmiel · Jan 18, 2012 at 06:15 PM
-If they search for you, they won't be able to see you, message your or interact with you in ANY way.
-Blocking is not permanent, you can unblock them from your Privacy menu.
-Also, you won't be able to see their profile, and interact with them in any way.
Hope that helps!
Answer by nickjuly4 · Jan 21, 2012 at 06:09 AM
When you block someone they'll see a page that says "The page you requested was not found." which is also shown when a person deactivates their profile. They'll only notice if they look at your profile through another profile or use an app that can detect if you blocked them.
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