I'm not sure if this has been released, but I just found it today and I thought it was pretty cool. :P
http://i381.photobucket.com/albums/o...untitled-1.jpg
What you do is have a person do the face they have on with one slash and then go into watch before the face disappears. Such as if I had the 'Who me?' face for girls on, I would do '/cutie' and then go into watch.
Then go into the same spot that the person who did the face was just on and your face changes to the 'Who me?' face regardless male or female. :]
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This only lasts for
one round. If you leave the room you also get your normal face back.