Facebook Chat Symbols can be used only in Facebook chat. In the chatbox you enter the desired CODE of the smiley and you will get the desired Chat Symbol.

Also, Facebook Chat Symbols can help you feel better, you can express feelings to others easily.
 
Very good if you want to express how you feel. For now there are 26 Facebook Chat Symbols.
Here is the list of all Facebook Chat Symbols and their codes:

Facebook Smiley Face	Meaning	Code
	Smile	:-) :) :] =)
	Sad	:-( :( :[ =(
	Tongue	:-P :-p :-p :p =P
	Wink	;-) ;)
	Big Smile	:-D :D =D
	Surprised	:-O :O :-o :o
	Cry	:'(
	Geek	8-) 8) B-) B)
	Cool	8-| 8| B-| B|
	Mad	>:( >:-(
	Very Angry	>:O >:-O >:o >:-o
	Thinking	:/ :-/ : :-
	Confused	o.O O.o
	Kiss	:-* :*
	Devil	3:) 3:-)
	Angel	O:) O:-)
	Heart	<3
	Very happy	^_^
	Moody One	-_-
	Pacman	:v
	Curly Lips	:3
	Robot	:|]
	Chris Putnam	:putnam:
	Shark	(^^^)
	Penguin	<(“)
	42	:42: