When deploying bear spray in the direction of a charging grizzly, aim lower rather than higher, experts like Chuck Bartlebaugh say. Tilt the can downward in the direction of the bear so that the ingredients atomize in the air and rise, creating a wall (rather than spraying over the top of the bear). Do it sooner rather than wait until a bear is mere feet away. And make sure you have a good grip on the can. Hold with two hands if necessary.