Find good fresh bear sign, I personally like to call in an area they will be comfortable coming to the call, meaning not too open. I start off calling softly in case I've slipped in close to one. I increase the volume and intensity until I'm full on screaming and really pouring on the emotion and pain. Remember your imitating something being caught and eaten or struggling to get free. I call almost non-stop for up to an hour. Put a watch out in front of you where you can see it, an hour is a long time to call. I like coarse loud calls, but plenty of different types of calls have called in bears. Watch your backside, as the medium and smaller bears will slink in and be standing there next to you before you hear anything. Good luck.