Apple recently released a Differential Privacy Overview which included lots of info, including a summary of the most popular ones amongst English speakers in the United States. The most popular, by a landslide, is this lil guy: 😂.(MacRumors notes there aren't any actual numbers provided by Apple, just a graph showing how much more used that emoji is than its nine runners up)The company is gathering this information to "help design better ways to find and use our favorite emoji," the document explains.