How do I reply or react to someone's story on Facebook?

You can only reply or react to stories shared by your friends on Facebook.
To reply to a story:
  1. Go to the Stories section at the top of your News Feed.
  2. Click to view a story. From there, you can:
    • Send a reply: Click Reply to [Name]... at the bottom of the story.
    • Send a reaction: Click an emoji in the bottom right.
Note: When you reply to someone's story, your reply can only be seen by you and the story owner.
Learn more about stories on Facebook.