Good observation is about knowing what is around you before you change speed, position or direction. Mirrors matter because your decisions must take account of road users behind and alongside you, not just what is through the windscreen.
The examiner is looking for an overall safe standard of driving. Effective observations support virtually every part of that standard, including moving off, changing speed, positioning, junctions and manoeuvres.
Use these as practice priorities rather than a rigid scripted routine.
Check the appropriate mirrors before changing speed, position or direction.
Use blind-spot checks when moving off or when the situation requires information that mirrors cannot provide.
Make observations early enough to affect your decision, not after you have already started the manoeuvre.
Keep your head and eyes moving naturally so you build an accurate picture of traffic, pedestrians and cyclists.
These are practical weaknesses worth fixing before test day. The exact fault grade always depends on the circumstances and severity.
Looking in mirrors but making no adjustment when another road user is affected.
Checking too late, after braking or steering has already begun.
Missing a blind-spot check before moving away from the kerb.
Focusing so heavily on one direction that hazards elsewhere are missed.
Build adaptability instead of repeating one memorised road or reference point.
