More brands have been creating emoji-centric marketing campaigns in order to appeal to Millennials and teens, and Old Navy has joined their ranks. The retailer has launched Emoodji, a site that analyses your emoji use to assess your mood. After signing in with their Facebook, Instagram, or Twitter accounts, the site creates a mood map based on most-used emojis, and matches that to the perfect flip flop color for your personality. Users can also enter the public accounts of celebrities and brands to see their emoji emotions. (PSFK)