Situation: I am sitting on a chair with a backpack on the same chair behind me and a couch to my left.
Alternative situations: I am standing in front of a chair with a backpack on it with another backpack on the couch to my left. I place my backpack on the chair next to the couch, and then sit on it facing the opposite couch.
Question: What direction should I turn to warm some food in the microwave?