You can mute the video, since there's no pertinent narration for it. This is a knitting cast-on method that I learned that is a variation of the long-tail cast-on. I really like how stretchy this is without being loose.
by Craftsy Knitting
by CherryBlossomHill
by Knit Purl Hunter
by Zumby Crafts
by Stitch & Story
by Knotty Threadz
by anniescraftvideos