Give us some more info on your hunt and we'll be able to help you more. Guided or unguided? Do you have quick access to the area you're going to hunt, or is it a 4 hr. drive then a 3 hr. hike? Bait? What is your goal - any bear? big bear?
Right now my best advice is to scout often to find where the sign is concentrated, but that may not be possible depending upon where and what type of hunt you're talking about.