Set the band on the ground and step through it like a hula-hoop, bring the band up until it hits you behind the knees.
Next cross the band to create a second loop and then place that loop under your feet.
You should now have a figure 8 pattern.
With a slight bend in the knees and hips, step out laterally to about shoulder width, then control the descent back until the feet are nearly touching. Repeat.