Try this
- Identify the variable part of the commute and the practical transition needed at home, such as changing clothes or eating. Choose a greeting that does not depend on an exact train arrival.
- After several arrivals, compare which part helped and which created waiting. Adjust the routine rather than asking the person at home to monitor the journey.
A worked example
“For the first week, I’ll say hello when I arrive, then take a little time to settle. On Sunday let’s see whether tea before or after dinner fits better.”
An invented example to adapt, not a real exchange or a script you have to follow.
Before you leave it here
Keep individual evenings flexible. The trial should reveal a usable pattern, not create a new deadline or require a detailed report of every delay.