Begin with three questions
Choose the things you need to understand before opening a tour: where you would learn, how you would spend an ordinary day and whom you could ask for help. This keeps the visit focused. A panoramic viewer is good for seeing spaces, but it cannot tell you how every course uses them.
Separate what you see from what you infer
Write down a visible observation, such as a type of learning space, separately from a conclusion about access or teaching quality. Then turn the gap into a question. A room shown in a video may serve a particular school, and the recording may predate changes to the campus.
Look for the everyday route
Imagine the journey between a class, a meal, a quiet study space and your accommodation or transport stop. Ask about timings and access where they matter to you. If you have specific mobility or learning-support needs, request a detailed response from the relevant university team.
Finish with a useful record
Keep one thing you liked, one practical concern and one question for a current student. Save these in your campus passport while the visit is fresh. Compare the same topics across a second university. You are building a clearer shortlist, not judging a campus from its best photograph.