And when you throw emoji into the mix, things get even more complicated. A " " or " ️" are easy to understand, but how are " " and " " different, and what does it mean when someone sends ...

When Higgins tweeted Tuesday night for the first time in two weeks, it was just an emoji of a blue cap. What did it mean? Nobody knew, but the tweet had more than 500 replies within 20 minutes.

NBA legend LeBron James set social media abuzz by wearing a Columbus Blue Jackets "cannon jersey" at Crypto.com Arena on ...