It makes it sound like there is a slip of paper involved.
Turning to non-members on the floor during a sitting, by tradition no non-member or no member who is not part of the staff is allowed to be on the floor during a sitting. That means everyone who is not part of that group is considered in our Parliament to be strangers. In other jurisdictions they are known as visitors. The Speaker can ask all visitors and all strangers to leave. In the past this has caused some issues, because on at least three occasions a member has brought a baby into the House during a sitting and technically that is considered to be a stranger.