Do not leave pet food or bird seed outside where bears can get to it. Store it indoors. Do not pour cooking grease or throw food scraps outside on the ground. Clean up all outdoor areas where you cooked or ate as soon as you have finished. Do not cook or store food in or near your tent.
Odors attract bears.
Pack out all your trash. Do not bury or try to burn non-combustibles. If a bear approaches you, frighten it by yelling, banging pans together or throwing rocks.