Facebook's reactions are thriving in your News Feed, and it now looks like the company wants to spread them to Messenger, too. The social network has confirmed to TechCrunch that it's testing the ability to add reactions to individual messages, much as you would with stickers in Apple's iMessage system or Slack's team chats. The experiment has all the icons you'd expect from conventional Facebook posts (five emotions plus a thumbs-up), but also a thumbs-down -- this is the closest you may get to that mythical Facebook "dislike" button. This would help tally up votes for a place to eat, for example, or share your response if you're a little late to reply with text.