Where should I put QR code signs at my event?

A QR code only collects photos if somebody notices it, has a free hand, and has a reason to scan right then. Most placement advice stops at "put one at the entrance", which is the one spot where all three of those things are least likely to be true. Arriving guests are carrying gifts, greeting people, and looking for their seat.

The placements below are ordered by how many photos they tend to produce, not by how they look in a styled flat lay.

If you do nothing else, put a card on every table.

Guests sit at their table for hours. They take photos of their table, the speeches, the food, and each other, and then they look up, and the card is already in front of them. There is no walk, no queue, and no interruption. It is the only placement where the sign is present at the exact moment a photo has just been taken.

Put the card where the table is not already crowded: near the centrepiece base, propped against a water jug, or at each place setting if you are using individual cards. Avoid laying it flat under glassware, where it disappears within ten minutes of people sitting down.

An entrance sign is worth having, but treat it as a signal rather than a call to action. Its job is to tell arriving guests that this event has a shared album at all, so the card they see later on the table already makes sense.

Put it at eye level, somewhere guests are stopping anyway, beside the seating plan, the welcome drinks, or the guest book. A sign on an easel three metres past the door, where people are still moving, gets read far less often than one directly above the thing everybody has to look at.

Waiting is the best possible moment for a QR code. Someone standing in a line has a free hand, a few spare seconds, and nothing else to look at.

The reliable spots are the bar, the guest book or gift table, the photo booth, and the food queue if you are serving buffet style. The photo booth is especially worth a card. Those guests have just taken a photo and are in exactly the right frame of mind to add it.

A rough working rule for QR codes is that the usable scanning distance is about ten times the width of the code. A code 3 cm across wants a phone roughly 30 cm away; a code 10 cm across can be read from about a metre.

That has a practical consequence: a large sign across the room is not more scannable, it is less, because nobody can get close enough to a code hung behind a table of drinks. Signs people can pick up beat signs people can only look at. The A5 sign works at arm's length, and the take-home cards are sized to sit on a table setting.

Nearly every scanning problem comes from something that only exists once the room is dressed:

• A tea light or uplighter throwing glare across a laminated card
• A centrepiece that looked small in the hire catalogue and now hides the sign completely
• A dim reception room where phone cameras hunt for focus
• Cards laid flat, then buried under menus, napkins, and wine glasses within minutes

Walk the room after it is set up and before guests arrive, and scan a few signs yourself while seated. That is the only test that reflects what guests actually experience.

Placement gets a code seen; wording gets it scanned. "Share your photos" tells a guest what they get. A bare QR code with no line of text is ambiguous. People have learned that unexplained codes are usually menus or Wi-Fi.

If you are running the photo wall on a screen, put a card beside it. Watching their own photo appear on the wall is the most effective prompt there is for the guests still deciding whether to bother.