1. Have lots of shots taken but only keep a few.
2. Stand back from the camera, and ask the photographer to zoom in instead.
3. Face the light to add sparkle to your eyes.
4. Stand in front of something that contrasts with what you're wearing.
5. Turn off the flash.
6. To make your skin glow, have your photo taken when the sun is on the horizon.
7. Stand on tiptoe, inhale, and lift your body up a bit just before your photo's taken.
8. Keep the camera above you.
9. Push your forehead out and down slightly to give yourself a chiselled jaw.
Try the method beloved by photographer Peter Hurley. It's just a tiny physical shift but makes a massive change to portrait photos.
10. Try "squinching".
Another Peter Hurley trick, this involves slightly pinching your bottom lids and squinting your upper eyelid (pinching + squinting = squinching, see?) to appear more compelling in photos. And, once you get the hang of it, it works.