The idea for the study started when Miller was on Facebook one day. People may not understand another person's feelings. They asked people to describe the emoji in words. Some professors argue that emoji use shows a huge shift in language. Smiling eyes might be lying eyes. Miller studied how emoji differences cause miscommunication. She thinks that might clear up the emoji communication problem. People may not understand another person's feelings. She investigates how to design technology to improve people's lives. The study involved pairings of 304 people. Positive scores were usually happy. Miller studies links between humans and computers. The same emoji looks different on the different devices. People also described emojis differently. The main goal is to make life better for humans, Miller said.