Opening a paroches (ark curtains), cabinet doors with letters, pictures, numbers on them.
Reading guest list and menus. Part #2.
Lowering the Strength of a Fan, Dimming the Lights, Lowering the Settings on a Heater or Refrigerator;
Introduction to the Concept of עובדא דחול (Uvda d'Chol) in Relation to the Melacha of M'AMER;