Now comes the magic: Clamp the pliers on the opposite end of the wire(s). Instead of simply holding the pliers and twisting, the wire twisting pliers are used by allowing them to twist in midair as you pull on the end of the 'center rotator'. With each 'pull', the 'temporary holders' rotate to create the spiral - thus creating the twist.
You open the hand that is holding the pliers as you pull on the center rotator- thus allowing the pliers to twist. Close your hand over the pliers to temporarily stop the twisting action, as you 're-load' the twisting by pulling on the end of the center rotator again.
Continue pulling, then releasing, the end of the center rotator until the wire has twisted as much as you'd like. Be aware that the twisting action will 'work harden' the wire. If you need to manipulate it into small scrolls, etc., you may find that it must be annealed to 'soften' it - but forming it into larger curves should be no problem.
Twist a few pieces of wire, and experiment with twisting different colors together. You'll find that it opens a whole new world of design possibilities!