In that unit, shoot the first legal bull you see if you are hunting public land! There are lots of elk in that area, but lots of hunters too. And if it is the third day of the hunt, shoot the first elk you see (should be an either sex tag).
Tactics: learning elk talk as mentioned above is important. I recommend getting some tapes/CDs from Elknut produtions:
http://www.elknut.com/ He doesn't dress up a hunting video, he just tells you what the elk are saying and what to say back.
If you happen to be hunting with Circle K outfitters, you will be in good hands.