The rapid spread of emoji chracters originating from Japan in our daily text conversations. This is bringing emotional state into daily conversations with a simple click on a smartphone. Shigetaka Kurita a designer for Docomo in Japan noticed the use of a picture of the sun in Japan for sunny weather not the use of words as in the U.S., and the use of a bulb over a head for someone with a smart idea, hearts common in Japan for affection, and this led him to the idea of creating a whole set of characters for different moods and emotional states to use in mobile conversation. Apple was the first to adopt them on its smartphones after the emoji were already popular in Japan for about 10 years.