Situation: I am sitting on a coffee table facing the bookshelf with another coffee table in my three o'clock direction.
Alternative situations: I am leaning on the coffee table on the left side of the room as I browse with my eyes on the bookshelf in front of me. I am sitting on the edge of coffee table one by couch with no backpack staring at the books on the bookshelf in front of me.
Question: Which object on my left is my better to sit on?