Hi, Larry. The primary lead should come from the angle of the body, secondary lead is your frame. So simply put, as you finish step 3 of the twinkle, change the angle of your body a few inches clockwise and keep it there until you wish to close the lady at the end of the 2 chasses. As you are doing your chasses down line of dance, your feet are pointed diagonally towards the wall but your body is facing the wall. To close her your body will turn back to facing the corner, including your frame.
Remember to keep your head in promenade position (left) throughout and shorten your steps when your wish to close the lady, as she comes around you slightly.
This will be the same concept any time you open the lady into promenade in any smooth dance, think about what the body does rather than how do I push her with my arms. Trust me, it's heaven for the ladies when a man leads from his body.
:)
Jewel B.