I know how to use Open Graph to present a YouTube video which displays a graphic (thumbnail) plus plays the actual video embedded in a Facebook stream. I also see that Facebook videos are "favored" in the sense that they (silently) autoplay as one scrolls past the post. How does one use Open Graph to present a Facebook video such that it will autoplay? (Note: I'm not looking to promote the video itself, but rather a separate page which embeds said video.) Thanks in advance!