Instagram now lets you leave comments on other people’s Stories that others can see, and you can also invite comments on your own Story. Here’s everything you need to know about the new feature: who can comment, who can view Story comments, how to comment on a Story, and, most importantly, why you should bother.

First, responding to a story is different than the “messages” you send when you want to text or comment on someone’s story.

If user comments are enabled, you'll see a "Comment" icon in the bottom left corner of the story, next to the "Message" field. When someone leaves a comment, it will appear at the bottom of the story, similar to how comments appear in a live stream.

But who gets to comment on a story, and who gets to view the story?