Let the demo use ordinary data.

The names are short. Every image is present. All the dates follow the same convention. Even the notes have politely agreed to be one line long.

It is a lovely collection. It may also be doing quite a lot of work on behalf of the demo.

Imagine a small tool for making a walking guide from a list of local stops. A polished example could contain four neatly named places, each with an address and a photo. The screen would have plenty of room to look composed.

An ordinary guide might include a long place name, two stops at the same address, and a note about an entrance that is hard to find. Those details are not necessarily errors. They are part of the information someone needs.

For this hypothetical tool, I would want the demonstration to make room for that ordinary unevenness. Otherwise the most important layout decisions never appear.

Make the example representative, not private

Representative data does not have to be copied from a real person’s collection. A fictional guide can include plausible awkward cases without using private addresses, personal notes, or photographs taken without permission.

Label the example as fictional. If the stops are invented, avoid presenting the resulting map as navigable directions. The demo is showing how the interface handles a guide, not recommending a walk through places that do not exist.

Include the distinctions the tool claims to handle. A missing photo should show the actual fallback, not a manually repaired screenshot. A long name should use the real layout. If two stops share an address, show whether they remain distinguishable.

There is no need to manufacture a catastrophe for every screen. Pick enough variety to make the product’s choices visible. The point is an understandable example, not a punishment for the interface.

Then follow one ordinary task through to the result. For the walking guide, that could mean choosing the stops, checking a note, and preparing the page someone will carry. Avoid jumping from a pristine opening screen to a finished file that was prepared separately.

If a capability is unfinished, keep that boundary in the demonstration. A prototype can show a proposed arrangement, provided it is called a prototype. A mockup should not quietly become evidence that an export or route calculation works.

A demo also needs a little restraint in its conclusion. Successfully handling one fictional guide does not establish reliability for every collection. It gives someone a view of the behavior under the conditions shown. Broader claims need broader evidence.

Save useful awkward examples for later checks. When the layout changes, revisit the long name and the missing photo rather than assuming that a clean screenshot means the old cases still work. Keep demo material separate from real user records so a convenient test does not turn into an accidental disclosure.

“Curiosity, made useful.” has room for the unglamorous detail too. Follow the long note onto the printed page and see whether the direction someone needs is still there.

A convincing demo leaves someone with a fair idea of what using the tool might be like. Let one note run to a second line. Ordinary data has things to teach the design.