Using emojis to tell students that a Princeton University professor won a Nobel Prize would have been anathema a few years ago, even among social media teams like ours. Getting students interested in a news conference about the award would have been a serious challenge. Not so in October 2015, when we celebrated economist Angus Deaton's achievement and featured moments—both funny and laudatory—from his press conference in a Snapchat story. It opened with a smiling photo of him and a caption complete with tiger face and thumbs-up emojis.