These are the past hints from the AIP Facebook page. They are in no particular order.

Absentee Voting Adopt in Lieu of Electronic Meetings
Ex Officio Lay on the Table vs Tabling Parliamentary Inquiry vs Request for Information
Specific Main Motions The Role of the Parliamentarian Basic Amendment Forms
Primary Amendment vs Secondary Amendment Gordian Knot Voting and Impartiality
Lack of a Quorum Consent Agenda Withdrawing a Motion