step four in how to tie a uni knot. If using the Uni Knot to attach a lure, jig head or fly, pinch above the eyelet (with your thumb nail at the point that marks the size of loop that you’d like) and lock the knot in place, as shown below. This will greatly enhance the action of the lure. The knot may snug down tight against the eyelet when a fish is hooked, but this should not cause any friction problems, as the knot will be underwater and well lubricated at the time. ©