Good friends defined by facebook
This tool was inspired from this article, which describes facebook might defined good friends by using some algorithm.
steps
- view page source of your facebook (login required)
- Open your facebook (login required) → right click anywhere → view page source
- Select All (Ctrl+A) → Copy (Ctrl+C)
- paste into ▼
facebook symbols 
Twitter Symbols 
Symbol 
Actual size of iPhone 6 