facebook secrets you want to know

1. How To Display Selected Friends On Your Profile
   Step 1: Go to your Profile
   Step 2: Click on the pencil next to your "Friends Box"
   Step 3: Select the number of friends you want to display
   Step 4: Select your friends
2. Screen Flip
   Hold Ctrl and Alt and press one of the arrows (down, left, or right) to change back, hold Ctrl and Alt and press the up key. Note, this works anywhere, not just on Facebook.
3. Pirate Language
   Step 1. Account
   Step 2. Account Settings
   Step 3. Language
   Step 4. Select "English (Pirate)"
4. Retrieve Chat History Even If Friends Aren't Online
   Step 1. Go to the friend's profile that you want to retrieve the chat history.
   Step 2. Look at their Facebook adress bar. Here's an example:
   http://www.facebook.com/profile.php?id=100000508063169&ref=ts
   Step 3. Write down the number. In this case, it would be 100000508063169
   Step 4. While still on the friend's profile, put this in the adress bar: javascript:buddyList.itemOnClick(100000508063169
   ); With the correct numbers of course.
   It is Actually much easier than it sounds. It takes about two minutes total. =)
5. Change Your Toolbar

ColorPut this code into your facebook adress bar: 

javascript:void(document.getElementById('headNavOut').style.backgroundColor="red");

This turns it red,

 but you can replace the red at the end.

 It can be turned: red, blue, green, yellow, purple, orange, white, black, gold, or silver. 

Though only you can see the change.