Research engineer Jane Manchun Wong, who is prolific when it comes to revealing social media features before their launch, discovered that Twitter was testing DM reactions last year, and now it’s coming to all users on the web, iOS, and Android.
Twitter’s Help Center site explains that the emoji reactions can easily be added to a Direct Message—both text and media attachments. “To add a reaction, hover over the message and click the reaction button (heart and plus icon), or double tap on the message and pick an emoji from the pop-up.”
If you happen to be using an older version of the iOS or Android Twitter app that doesn’t support message reactions, they will be displayed as text-based messages.
While some would argue that Twitter should be dealing with the trolls and bots populating the service, the Reactions feature will certainly be useful for those messages where you’d rather not give an actual reply.