To know it follow these steps
- Go to your timeline and press
Ctrl
+u
or mouse right click and chose “View Page Source”. - Then find “InitialChatFriendsList” by pressing
Ctrl
+f
. - After that word you will see some Facebook use ID number (like
100003309186884
) - Now go to “https://facebook.com/” and Add that number after it. It will take you to that person profile page who had visited your profile most.