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 Pattern Duchess
by Feride Erbaşar
by JoannesWeb
by Jimmy Beans Wool
by The As Seen On TV Blog
by Rita k Creations
by Craftsy