YouTube found that 86% of the emojis posted in the comments of the Daddy Yankee track “Dura” were happy ones. Another song to elicit a strong emoji reaction was “Panda” by Desiigner ...

The Joy emoji ... Smiling Face With Smiling Eyes is a permanent addition to our language; a cartoon smiling face is just about the crudest method possible to convey to someone “I’m happy.” ...

With the passage of time, more and more people departed for the rapidly expanding online world as the real world and the real smiles ... humans happy in turn made me the happiest emoji on earth.

But a staggering 60 per cent described it as a ‘happy’ emoji - which isn't quite right. A further 23% thought the aim of the emoji was to convey a smile and just 1.5% of respondents correctly ...

He created the first-ever smiley emoji ... Smile Day Challenge. Do an act of kindness. Help one person smile." The day is observed to encourage people to do acts of kindness and make others happy.