THINGS TO KNOW

• Login to your Facebook Account
• Visit the profile of the user or group whose image you want to send.
• Copy the Username or User ID from address bar.

• Now in chatbox type he username or user id in following format:

 [[Username]] or [[User ID]]

For Sharing the picture of Mark Zukerberg or Coca cola type [[zuck]] and [[cocacola]]  respectively.
This can result in disappearnce of defualt simleys used in facebook as you will get better visual images to express your emotions.