I move my jaw down slightly and then forward. It took a lot of practice and like @LatitudeAdjustment, I would have to hold the regulator in my mouth when learning to do it. But now, I can start equalizing while descending without touching it. I’ve gotten so used to doing it this way that I can do it in one fluid motion without even thinking about it. I’ve actually had dive buddies ask me how I can descend so fast since I’ve figured out how to do it this way.