Talks and panels
You finish a talk. The useful part is who still wants to talk — not who waited in a line.
The line at the laptop
People wait by the computer. You spell your email out loud. Half of them give up and say they will find you later. A few get a photo of the last slide that does not include the address.
You wanted the hallway conversation with the person who had a real question. Instead you are a help desk for your own contact info.
Last slide, then the room
Put the QR on the last slide. Or drop the link in the chat if the talk is hybrid. They save you from their seat while you take the last question.
The people who only wanted the email are done. The people who wanted a conversation can still walk up — and you are not typing.
What you keep
You get the saves without the lineup. If you tagged the talk as an event, those people sit under that session — useful when three talks in a week would otherwise collapse into one inbox blur.
You get back to the person who stayed. That is the point of finishing a talk in a room, not a contact-collection shift.
In this room
Last slide: QR big enough to read from the back. Leave it up during questions. They save you from their seat.