Sit back against a tree, open up that sammich you brought with you,, sit it out in front of you, cross legged and slowly softly chant:
OMmmmmmm Saammmmmmmmmiiiiiiiiiiiiiiiiich,,, OMmmmmmmmmmmmmmmm Saaaaaammmmmmmiiiiiich, over and over, pausing every couple minutes to look around.
Wont be long till yogi will be coming looking for that sammich in the pick-a-nic basket.
Really though. fawn in distress or even a lost soft of calf elk call will work. Ive called them in using one of those grey folded over plastic elk calls with the rubber band. Using a low drawn out kind of Whaaaaaaaaaahhhhhhh, Ill breath in a normal breath, then use nearly my entire breath blowing out through the call. I didnt make it that higher pitchto low pitch cow kind of call, just a long lazy wwwwwwwaaaaaaaaaaaaaaaaaaaaaaahhhhhhhh.
Few years back I called in a 150# ish younger black bear 4 times over 45 min using that type of call. I was sitting in my tree stand and he was looking all over trying to find that sound. Coulda shot him a dozen times under 30 yards but I was hunting elk not bear.