So, when these letters are combined, they represent 'ILY' - or 'I love you'. This meaning has come as a surprise to many users - many of who had mistaken it for the Sign of the Horns emoji.

So, when these letters are combined, they represent 'ILY' - or 'I love you'. This meaning has come as a surprise to many users - many of who had mistaken it for the Sign of the Horns emoji.

But first you have to know what the emoji even mean, so we asked people who use the images in their online identities. Here's some of the most pervasive symbols floating throughout our Twitter feeds.

Dig deep into the shows you love: Sign up for USA TODAY's Watch ... In the second episode, Adam also explains teens use heart emoji to convey different meanings depending on color: "Red means ...

You can check out at any time. More info An Irish expert reveals the hidden meanings behind emojis that parents should look out for - including the cat face, dynamite and chair emoji. Keith Broni ...

While you might assume that a heart emoji just means love, in emoji slang each different colour actually has its own hidden meaning. In the most common view, a red heart represents classic love or ...