Facebook is making conversations within Messenger more dynamic and interactive. Starting today, you’ll be able to post a reaction to specific messages and receive notifications when someone mentions you in a chat. These features will also be available for teams using Facebook’s Workplace Work Chat service. To add a reaction, press and hold on any message and select the emoticon that expresses how you feel You can also see how others in the conversation have reacted, as Facebook will denote this in the lower corner of the message. When someone reacts to your message, a small animation will appear, and when someone reacts after you’ve stopped using Messenger, you’ll get a notification.