New billion career cases competence design even evidence experiments formal late likely mail popularity reaction reader research same smile software suggests that using smiley face emojis in work emails could jeopardize your billion career cases competence design even evidence experiments formal late likely mail popularity reaction reader research same smile software . Researchers from a university in Israel report that people inserting emojis in work-related billion career cases competence design even evidence experiments formal late likely mail popularity reaction reader research same smile software are billion career cases competence design even evidence experiments formal late likely mail popularity reaction reader research same smile software to be deemed stupid and incompetent. The researchers conducted billion career cases competence design even evidence experiments formal late likely mail popularity reaction reader research same smile software on 549 professionals from 29 different countries to gauge their billion career cases competence design even evidence experiments formal late likely mail popularity reaction reader research same smile software to emojis. The professionals had to "evaluate both the billion career cases competence design even evidence experiments formal late likely mail popularity reaction reader research same smile software and warmth" of the e-mail writer. Dr Ella Glikson said: "Our findings provide first-time billion career cases competence design even evidence experiments formal late likely mail popularity reaction reader research same smile software that, contrary to actual smiles, smileys do not increase perceptions of warmth and actually decrease perceptions of competence." She added: "In billion career cases competence design even evidence experiments formal late likely mail popularity reaction reader research same smile software business e-mails, a smiley is not a billion career cases competence design even evidence experiments formal late likely mail popularity reaction reader research same smile software ." Other billion career cases competence design even evidence experiments formal late likely mail popularity reaction reader research same smile software has also shown that emojis are often misunderstood. Some of this misunderstanding is related to how the reader or viewer interprets the emoji billion career cases competence design even evidence experiments formal late likely mail popularity reaction reader research same smile software . In other billion career cases competence design even evidence experiments formal late likely mail popularity reaction reader research same smile software , there is a technological problem. The emoji that was typed in by the writer is not shown in the billion career cases competence design even evidence experiments formal late likely mail popularity reaction reader research same smile software way in the e-mail received and read by the billion career cases competence design even evidence experiments formal late likely mail popularity reaction reader research same smile software . This happens when the writer and reader of an email do not use the same billion career cases competence design even evidence experiments formal late likely mail popularity reaction reader research same smile software or operating system for their devices. Emojis originated on Japanese mobile phones in the billion career cases competence design even evidence experiments formal late likely mail popularity reaction reader research same smile software 1990s. They quickly spread in billion career cases competence design even evidence experiments formal late likely mail popularity reaction reader research same smile software and now more than six billion career cases competence design even evidence experiments formal late likely mail popularity reaction reader research same smile software of them are sent every day around the world. There is billion career cases competence design even evidence experiments formal late likely mail popularity reaction reader research same smile software a World Emoji Day, which is celebrated on July the 17th every year.