Set up a paragraph in the middle of a post to appear different to each player?  Kind of like a "Private to ..." message but without it ending up being a different color and proceeded by "Private to"?

I want the players to encounter a picture that has their character in it, but instead of using "you see yourself in the picture" I want to describe the character and then have them realize it's of them.

It's not a major plot point, but I have a very particular reason for it.  I want the feeling, the idea that they might not all be seeing the same thing, I want the confusion that would cause if it happened in real life to a group of people.  The feeling that they can't trust their own eyes.  The atmosphere is very important in this game and that would REALLY help to set it.

Private and Secret lines are pretty much it.

Under the list of options for setting up private lines is one that lets you set up a secret line.  This works like a PL, but the player is unaware that only he can see it.

Ah, that would do it!  Thank you Ron!