I would simply walk slowly away, keeping the bear in sight at all times. Chances are good that any bear in the wild will know you're there before you know the bear is there, and bears normally avoid humans when they encounter them in the wild. The only time you should worry about seeing a bear is if you happen to surprise the bear, or accidentally come near a female with a cub. But in any case, running is the absolute last thing you want to do in any encounter, as a grizzly bear can run as fast as a horse at full gallop. The best thing to do would be to stay calm, avoid looking the bear in the eyes, and pray for the best!!