This video shows us how to open a glass bottle with your lighter. To open a bottle using a lighter: Hold around the top of the bottle using your left hand. The key is that the index finger must be around the top of the bottle. Hold the lighter with your right hand and place the blunt end of the lighter solidly between your lowest knuckle and the edge of the bottle cap. Hold the lighter perpendicular to the bottle. Tuck the lighter so that the edge is under the teeth of the bottle cap. Squeeze tightly on the bottle and apply a little pressure on the lighter to make sure it's wedged in between your knuckle and the cap. Pull up the lighter using your right hand and you left index finger must push in the lighter. With the right amount of pressure, the bottle is now already open.