There seems to be one online. I have seen it once, but I don't know how to find it. I've done this before and learned it. I don't know. Simply put, if you fold a red rope in half, you can twist it all the time and tie a few splayed knots after twisting it for a while. The figure-of-eight knot is to put both sides of the rope flat on the left hand, hold it down with the thumb and forefinger of the left hand, then pick up the rope with the right hand and put it outside, then pick up the rope outside and bypass the rope placed on it, go in from below (a hole will be formed in the middle), and pull the rope out and flatten it to form a figure-of-eight knot. In the meantime, keep your left hand pressed and don't let go. You can try it first. Twisting rope is also the part where the left hand holds the folded part and the two ends are connected together, and then the right hand holds two ropes and twists them in one direction. Don't separate your hands too far, about three centimeters. After two or three twists, the left hand moves to the right hand position, and the right hand moves down three centimeters and then twists.