Use a shoulder-width stance. Offset your feet so the toe of your back foot is at the heel of your front foot. Your back foot will have the toes only on the ground and barely any pressure on it, only enough to balance. The front foot should take all the weight. Have a slight bend in the knee and slightly roll that knee out as you push back in your hips. To stand up, as always, drive your shoulders into the bar. Do all reps on one leg then switch.
This would be a supplemental movement or second barbell movement in a Conjugate program on max effort lower day. This is a good precursor to an actual step out goodmorning. 3-4 x 6-12 will getcha. You can use any bar you want. The SSYoke bar is especially miserable on these.