https://techcrunch.com/2019/04/11/linkedin-adds-a-range-of-reactions-to-spur-more-engagement-in-conversations/

Sometimes a “like” in social media doesn’t give the full picture, or you’re just not inspired enough to write a fuller response. Today LinkedIn addressed that issue on its own platform, with the introduction of four new reactions people can use in response to posts in their timelines. In addition to “like”, you can now react in four other ways to posts with icons that indicate “celebrate,” “love,” “insightful” and “curious.”

The reactions are rolling out globally to the company’s nearly 600 million users starting today to both the desktop and mobile apps.