Have you heard of Foursquare? It's a fun social media network based on your location. You can check it out on your computer and sign up for free, and you can download free Foursquare apps for your iPhone or Smartphone, and update your status on the go, as well!

Like with any social media platform – Facebook, Twitter, etc – you can update your status on Foursquare, and follow and be followed by your friends! If you're already on Foursquare, follow InStyle, and you'll be rewarded with a free NARS lipstick! If you've never heard of Foursquare, sign up now for free, THEN follow InStyle for your free lipstick!

Getting your lipstick is pretty easy. Once you're signed up and following InStyle, all you need to do is check in at at least two special InStyle branded hotspots located in Saks Fifth Avenue, visit the store General Manager to get your free lipstick!

So, if you're a Foursquare member and live close enough to New York to take advantage of this deal, then add InStyle to your Foursquare friends, and get to Saks Fifth Avenue! That lipstick will be yours in minutes!