They advise people to wear noise-producing devices such as little bells on their clothing to alert but not startle the bears unexpectedly. They also advise you to carry pepper spray in case of an encounter with a bear. It is also a good idea to watch for fresh signs of bear activity.
People should be able to recognize the difference between black and grizzly bear droppings:
Black bear droppings are smaller and contain berries and
possibly squirrel fur.
Grizzly bear droppings have bells in them and smell like pepper spray.