Most vines propagate well by serpentine layering. Dig a shallow trench next to the base of the vine. Take a section of the vine long enough to lay on the ground. Make a small cut on the bottom of the vine a couple feet away from the base. Bury the portion of the vine where it’s cut. You may want to anchor it down with a pin or small rock. Depending on the type of vine, the roots should form in several weeks to several months.