The Cockpit Drill: Seat, Mirrors and Controls on Lesson One
Before the key turns, before the car moves an inch, you set it up around you. That is the cockpit drill, and it is the most skipped thing in driving once people think they are past it.

Lesson one of Essential Driver Training is called Car Controls and Safety Checks, and this is the heart of it. It sounds like nothing. It is the hour that decides whether, six months from now, your hands find everything without your eyes leaving the road. Here is the drill, in order.
Seat first, because everything else depends on it
Set the seat so your left leg can push the clutch flat to the floor with a slight bend still in the knee. Too far back and you cannot press it home. Too far forward and you are hunched over the wheel with no room to steer. Your wrists should rest on the top of the wheel with your shoulders against the seat. Get this wrong and every other setting is wrong, because you set them from here.
Mirrors, for your eyeline and nobody else's
The interior mirror frames the back window with a small tilt of your head. The door mirrors show a sliver of your own car and mostly the lane beside you. They are set for where you sit, so a mirror the last driver left is a mirror lying to you. And a mirror is no good if you never use it, which is the habit lesson one is really trying to build.
Mirrors before you move. Every single time. Not because a rule says so, but because you want your neck turning to that blind spot on its own in six months, without a thought. The habits set in lesson one are the ones that hold under pressure.
Controls, found by feel not by looking
The three pedals, clutch, brake, accelerator, left to right. The gear stick and its pattern. The handbrake. The indicators, the lights, the wipers, the horn. You find them all while the car is going nowhere, because the day you need the wipers in a sudden shower is not the day to go hunting for them with your eyes off the road.
The safety checks nobody does until it matters
Lesson one also covers the walk-round. Tyres with tread and the right pressure, lights that all work, fluids topped up, nothing hanging off the car. It is the stuff people ignore until the one wet morning a bald tyre lets go. Learn it now while someone is watching, so it becomes routine before it becomes a problem.
None of this feels like driving, and that is the whole trick of it. The cockpit drill is the quiet floor everything else is built on. For where this hour sits in the bigger picture, here is what actually happens across your first driving lessons. Set the car up right and the rest has somewhere to stand.