This will be the first achievement you get in the game.
Shortly after you load up your save file, you'll have to remove any hats or glasses you may be wearing, then you'll be scanned into the sensor, where you have to stand with your arms and legs out in a 'spread eagle' pose. You'll then be asked what type of glasses you want, want colour of glasses you want, if you have any, and if you want a ponytail in your hair, or short hair.
After you've been scanned in and done all the above, the achievement will pop.