some things that work for me:

1. bright colors (primary, warm colors)
2. cropping for a thumbnail - either including the 'focus' of the pic, or just enough to wonder what the rest looks like
3. eyes -dialated slightly, and fixed on the viewer
4. sexy expressions (don't really do newduhtee, because I can't check on things at work, and the missus looks askance at it..;)
5. (sadly)- the more of someone else's stuff I put in, the better the viewings (probably my modeling skills..;) I once put Sixus' cat, Level 19 in, and a cute title, and got 300+ hits (for me, that's darned good..;) go figure. 6) Detail, or implied detail- lots of interestin' l'il bits to cause the eye to linger..;)
   hope this helps.

I wish I'd said that.. The Staircase Wit

anahl nathrak uth vas betude doth yel dyenvey..;)