Take a long thin cheap(cheap ones are easier to bend) screwdriver & bend it slightly at the right spot along it's length so it will go under the barrel of the adjuster & slightly up to contact/push back the flat piece then as said angle your spoon in from the other slot to lever the threads. The left (pass) side should have left hand threads and they are easy to spot w their wierd twist on the threads so w several seconds of visualizing you can figure which way to turn the star.