You can't it has to be two character =) :) =( :( ;) =P :P ;P 8) Ect....
there is a special font called wingdings - in this font JKL appear as ...smiley characters in many applications
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05.26.11 update!
Anything is possible... there may no single keystroke but using your keyboard you can use ctrl-c and ctrl-v to copy and paste some Japanese katakana characters that look like smileys.
ッ ツ ッ
A smiley face, a square, a circle, and a diamond.
Type ☺
The codepoint of a smiley face in Unicode is 0x263A. To type one on Windows, type Alt+263A. On Linux, it is Shift+Alt+263A.
open the chat and there is a button with a smiley face, click it and then numerous faces will pop up which you can use. you can also type face eg, :) = smiley face
A backwards smiley face is when the punctuation for a smiley face is reversed, such as ) : or ( :. It may symbolize a different emotion than a traditional smiley face.
click on the smiley face icon or " " is a smiley face ";)" is a wink ":D" is a big smiley face etc.
:Dthe smiley face
type what i type: <MARQUEE> is this working? *just remember there has to be a smiley face
on msn messenger, type in :-*
You simply type 'lol' or make a smiley face like this: :D
Smiley cat is a cat that has a smiley face :D
The smiley face has been around for decades. In 1962 the smiley face was first introduced in New York on the popular radio staion WMCA who gave out sweatshirt's with a smiley face logo.