Just "Like" the Nivea Facebook page here, then upload a photo of a couple showing some sort of PDA (kissing, holding hands, any sort of public display of affection) and enter your info, and voila! A coupon for a FREE Nivea lip product will be sent to you in 8-10 weeks! Easy as pie.
This is, of course, in celebration of National PDA Day. (Who knew?) These are going pretty quick, so hurry! At the time of this post, there's a little over 14,000 coupons left, and they started with 150,000.