After the seat belt comes the initial nest building. Headset adjusted and water bottle stowed. Seat full back and full down, oxygen checked, parking brake set, battery switch on, voltage checked. Beacon on to let the line guys know that there’s power on the airplane and somebody is in the cockpit. Rotary switch check, air source select on both, fuel quantity noted and compared to fuel required. Does the flap handle match flap position? Reach (or call) for the before-start checklist.
After the first two or three hundred hours in the airplane, you get familiar. It’s called flow.
