MIRROR = Interior and which direction/side mirror.
MIRROR: Check the interior mirror and the appropriate side mirror for any traffic or hazards before changing direction.
SIGNAL = Either indicator, brake light or reverse light.
SIGNAL: Activate the appropriate signal—indicator, brake light, or reverse light—based on your intended action.
POSITION = Positioning/Lane discipline. (manoeuvre)
POSITION: Ensure your vehicle is correctly positioned in the lane and maintains proper lane discipline for the maneuver.
SPEED = Appropriate speed on approach. (Correct gear)
SPEED: Adjust your speed to match the conditions and choose the correct gear for the manoeuver.
LOOK = Looking to see if safe to continue. (L.A.D.A)
LOOK: Check your surroundings (L.A.D.A: Look, Assess, Decide, Act) to ensure it's safe to proceed with the maneuver.
Please check [M.S.P.S.L Understanding] for a more comprehensive and detailed explanation.