Early risers will be able to catch a celestial "smiley face" in the eastern predawn sky Friday morning, as Venus and Saturn ...

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.

Which shaking smiley face should you use? Is there a difference between each different colored heart ... and a tired-looking emoji with bags under its eyes-- honestly, same.