And when you throw emoji into the mix, things get even more complicated. A " " or " ️" are easy to understand, but how are " " and " " different, and what does it mean when someone sends ...

Researchers who use Twitter took to the internet to tweet descriptions of their work using a language that's theoretically now the argot of the people: emoji. They used the hashtag #emojiresearch.

In a recent workplace survey, more than half of the employees polled said they have used an emoji to communicate at work. Here's a look at the pros and cons of using them in office communications.