This game is rather simple, and OOC (as in, does not effect plot)
Soooo, lookie loo at this example;

Tavin the Second, on his evenings home alone, enjoys a good deal of smoking and alcohol without his mask.
After all, the thing gets stuffy.
So, the Mirror simply must be attached to a character on the site, and have a funny caption attached. IT DOES NOT HAVE TO BE YOUR CHARACTER.
So just don't be (extremely) offensive (a bit is ok, so long as it's in the character)
And you can reply to a pic in character, but please post one a photo with the reply.