World Emoji Day started in 2014. It's celebrated every year on July 17 because that's the date shown on the calendar emoji .

For the most part, a single emoji, haha, hehe or LOL will make the message clear, though often you’ll get an elongated hahaha or hehehe. When it comes to e-laughs, most users keep it short.

The “laugh out loud” face is officially the most popular emoji in the world. Software maker Adobe surveyed more than 7,000 people across several countries and the LOL face ranked No. 1.

The “laugh out loud” face is officially the most popular emoji in the world. Software maker Adobe surveyed more than 7,000 people across several countries and the LOL face ranked No. 1.