The idea for the study started when Miller was on Facebook one day. Then there is the people part. Then she asked people to describe the emoji in words. Smiling eyes might be lying eyes. Miller studied how emoji differences cause misunderstanding. People understand emojis differently. This could happen if a message is sent from a Google phone to an Apple iPhone. She noticed that an emoji she saw on Facebook was not the same as what she saw on her phone. Miller showed how an emoji with a grin and smiling eyes looks on 10 different phones. People also described emojis differently. Understanding its part in how people speak and write is important. A smiling face sent from one phone could show as a frown on another phone. Miller studied how emoji differences cause misunderstanding. A smiling face sent from one phone could show as a frown on another phone. Miller showed how an emoji with a grin and smiling eyes looks on 10 different phones.