If you must take and send a pic, tidy and natural is the way to go.
If there is carpet, give it a comb so it's even, and make sure the part is where you want it. If you're sportin' an 80's look, it doesn't mean it has to look like you and the drummer from Twisted Sister share a stylist.
If you are more a hardwood gal, check for stubble, stray hairs, and watch for those red spots with the white-head centers. Red-Eye Removal software doesn't work so well on those nazzy ingrown hairs. So I've heard.
As mentioned, keep it as natural as possible. Just cause you can hook your leg behind your neck doesn't mean you should. It's a pussy-pic, not a head-shot for a Cirque Du Soleil call back interview. And unless you can look natural with your hands in the shot, keep them out. Spreading yourself open does not look inviting - it looks like you're pulling two halves of a grilled cheese sandwich apart. Most guys, when they see that, think of the times in their childhood when they hooked their fingers into the corners of their mouths, pulled, and recited "My dad was born on a pirate ship".