Emoji are being adopted at a faster rate than any other 'language' - and eight in 10 of us now use the colourful symbols to communicate.
To plot this popularity, a linguistics professor has conducted the first 'Emoji IQ' study looking at how the pictures are used and by whom.
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And she has created an online test to determine how well you know your 'confused' face from your 'angry' face to determine if you're an emoji master.
The test contains 10 questions that ask users to identify the meaning of certain symbols, and how they would write sentences using emoji.
At the end of the test they are given a percentage score - rather than an IQ score as the test's name suggests - and the aim is to be an Emoji Master with a perfect score.
According to the study, four in 10 people send messages made up entirely of emoji and 18 to 25-year-olds find it easier to express emotions using the symbols.
More than half of this group admitted emoji has improved their ability to interact with others.
But for the over 40s the language is lost in translation.
More than half (54 per cent) admitted to being confused about what the symbols mean, while a third claimed to have avoided using emoji in text, instant messaging and apps because they lacked the confidence to use them appropriately.
TalkTalk Mobile teamed up with Vyv Evans, linguistics professor at Bangor University to launch the study and improve understanding of emoji with the 'Emoji IQ' tutorial.
'Emoji is the fastest growing form of language ever based on its incredible adoption rate and speed of evolution,' said Professor Evans.
'As a visual language emoji has already far eclipsed hieroglyphics, its ancient Egyptian precursor which took centuries to develop.'