Facebook added another feature to spice its Stories up. It allows users to add animation to static images. You can have a look at how ‘Animate’ feature works in a tweet by Matt Navarra:
The feature has several modes; each of them can be adjusted. By using the option, you can try to make your Stories look more fresh and engaging.
Right now, this option is available for some users, so you may have to wait to use it yourself if you can’t at the moment.