You can say a lot with a heart. “LOL, adorbs, hugs, wow, high five, yes!,” is why Twitter is switching to a heart icon for favorites in place of a star. The star was apparently confusing to new users of Twitter and a heart icon is much more universal.
The heart, in contrast, is a universal symbol that resonates across languages, cultures, and time zones. The heart is more expressive, enabling you to convey a range of emotions and easily connect with people. And in our tests, we found that people loved it. – Twitter
Twitter’s live video streaming service, Periscope, uses hearts to show how you feel. Twitter’s other service Vine is also swapping the star for the heart to keep things consistent across its platforms. If you haven’t seen the heart yet, open up your apps and check because the change occurred today.