Heart Eyes is like a box of assorted Valentine’s Day chocolates, offering up a variety of different flavors—Horror! Romance!

Which shaking smiley face should you use? Is there a difference between each different colored heart? Does the peach emoji actually mean fruit anymore? Here's how to figure out what all 3,790 ...

Of the six billion emoji that are sent globally every day, around 70% are emotion based – for example, smiley face, love hearts. A smaller proportion of the emoji sent are sad expressions.