Guidance summary
Observe first, then signal and manoeuvre
This reviewed summary is linked to the question. It does not change the saved answer or score.
Read the reviewed summary
MSM means mirrors, signal, manoeuvre. Use mirrors to assess traffic before indicating a necessary change. Within the manoeuvre, plan position, speed and the view needed to proceed safely. Signalling does not grant priority, and observation continues through the manoeuvre.
Source: Observe first, then signal and manoeuvre
This reviewed summary is available here without another request. The full source opens in a new tab and needs a connection.