Store all food in the trunk and if possible 100 feet from your tent. Never store food in your tent as bears can smell a candy bar even if you have hidden it in a suitcase.
When eating, keep all food within arms reach and then when done eating put food away
Stay put if a bear shows up, defend your camp but do not run - Bears are known for chasing people that run away.
Act tough and stay in a tight group. Scream, yell, stomp your feet and throw rocks.
Look away - bears consider direct eye contact to be a challenge.
Carry pepper spray and use it if needed - this will deter most bears but beware, some bears may return after the pepper spray has worn off.
If a bear does take your food - let it go and do not chase the bear - food can be replaced.
Throw all trash in appropriate containers and take out of your campsite - bears love and can smell soda and bear cans