Searching for people that aren't in my friend list?

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Question arising: Bit dumb question, but since Facebook has many 'see who visited your profile' apps am curious....

If I search for people that aren't on my friend list, can these people ever find out I have been searching for them/visiting their profile?

• See: How do I Reactivate Facebook Account?

Answer to "Searching for people that aren't in my friend list?"

Answer: There is not any type of apps who tells about who visited our profile.
The apps you're asking about are just fake apps.
I suggest you not to use those apps because when you open these apps and Click "Allow" ..you allow them to get access to your every personal information. Some these type of apps are also being use to hijack facebook accounts.