Regrasp purple strand with right hand. Purple strand released by left hand and grasped by right. Horizontal tension is applied with left hand toward and right hand away from operator. This completes first half hitch. Left index finger released from white strand and left hand again supinated to loop white strand over left thumb.
Purple strand held in right hand is angled slightly to the left.
Purple strand brought toward the operator with the right hand and placed between left thumb and index finger. Purple strand crosses over whit strand. By further supinating left hand, white strand slides onto left index finger to form a loop as purple strand is grasped between left index finger and thumb. Left hand rotated inward by pronation with thumb carrying purple strand through loop of white strand. Purple strand is grasped between right thumb and index finger.