Materials:unsoldered Jump Ring
Tools: Chain Nose Pliers
Begin with an open (unsoldered) jump ring.
Grasp the jump ring on either side of the opening with two pairs of chain nose pliers. Or if you don't have two pairs of pliers, you can use one pair of pliers and your fingers.
Snap the two sides together to close the ring. The seam should be closed tightly.
Congratulations! You have closed a jump ring.