Try this
- Agree on the kinds of entries: route notes, meals, drawings, or small observations. Keep private reflections in separate personal storage.
- Label authorship and tentative plans clearly so the journal does not turn into a record of unagreed commitments.
A worked example
“Our shared page can hold places we visited and sketches. Personal reflections about the trip stay in our own notebooks.”
An invented example to adapt, not a real exchange or a script you have to follow.
Before you leave it here
Do not copy a private entry into the shared journal because it concerns a shared event. The author chooses what crosses that boundary.