Facebook “Like” button is set to get more expressive LIKE IT OR NOT !!!. Facebook is launching a pilot test of “Reactions”, which will allow users to express a range of emotions including love, happiness, anger and sadness. “Dislike” is not one of them though. Facebook CEO Mark Zuckerberg said last month the social network was working on adding a button other than “Like” to express empathy on posts where a “Like” would not be the appropriate response. Users immediately took to the social media site, speculating that the company was working on a “dislike” button.