As much as we debate new Twitter features that affect users, in its pursuit of revenue the company is constantly courting advertisers. Its latest gambit capitalizes on that oh-so-popular element of modern conversation and 2015 "word" on the year: the emoji. Now, advertisers can target more than just specific words in tweets, they can also cite particular emoji to find users they believe will be receptive to their pitches. In other words, use the pizza emoji in a tweet and expect an ad from Dominos or someone similar coming your way soon. Twitter also says it can serve up users "based on their expressed sentiment" and "based on their passions." We're not sure what this will mean for the eggplant or 💯 emoji, but users will probably find out soon enough.