2.  Divination by smoke, also known as Libanomancy and Thurifumia, involves observation of smoke as it rises from a fire. While you can add your own complexities, generally smoke that rises straight up the answer is positive, if it instead hangs heavily over the fire, the answer is negative. Another method it to watch the smoke from extinguished candles. If smoke moves to the right, the answer is positive, if to the left it is negative.