The first conversation after a disappointing mock decides the week. This gives you the words — you're the coach here, not the marker.
Same-day conversations happen with the mock still raw. Wait at least a day; within the week is ideal — the same rule your child is following with the paper itself (Asset 1).
Any of these can happen. Tap the one you're bracing for — each has a single line. You don't need a speech.
You open the door and hold the posture. The Mock Paper Analysis sheet (Asset 3) does the marks conversation — you don't have to. Ask about the plan, not the score.