Side-Grinning
For status, comments and chat
Copy the emoticon.
Click on 
icon on Facebook.
Paste the emoticon in the File name field and click Open.
This smiley has half a grin to share. Whenever you don't want to commit to a full grin, you can post this image along with your comment on Facebook. You probably see many comments on the social network that don't please you enough to make a whole smile.