Descriptions of the Aiki-taiso from Rod Kobayashi-Sensei:
11. Enkei Undo
Stand naturally with your arms at your sides. On the "One" count, dip your hips as you let your left arm swing toward your One-point, then immediately straighten up. The "Two" count dips again as you relax and drop your left hand down. The movement resembles drawing a circle in front of your One-point. Your right hand should be placed at your One-point during the movement.Alternate and repeat this exercise several times.This is an excellent movement to lure an attacker well within your range of effectiveness as you lead them out of their range of effectiveness.