Reactions to Facebook Live videos will actually show up in the video in real-time, so the person filming can get an idea of what parts of the video the audience liked best. People watching the broadcast later will also see the reactions as they happened, so it will feel much like Periscope replays in that respect.
To draw on a little bit of Snapchat and Instagram’s success, Facebook live also offers Live filters, so you can write on your video or just make yourself look better for your audience.
This is also being extended into other areas of Facebook. You’ll also be able to go live from Facebook Groups and Facebook Events, so performers might me able to give a sneak preview backstage before a gig. Plus Facebook will be introducing a hub for videos, in an attempt to be more like YouTube.