Each drill drops you at a planned level and plays out one of Job's sequences. The opponent refreshes, pulls, and then your side either takes the level or it doesn't. Get in on the take and sit out the fakes. You get a grade after every drill.
Shorts are the mirror: watch the bid, enter when the offer steps below it. The ladder shows size at each price, recent volume sold into the bid and bought from the offer, and pull/stack (P/S): how much resting size was added or removed at each price over the last few seconds, not counting trades. Red means pulled and green means stacked. A bright red flash is a sudden pull. Coach mode names each phase live while you learn.