Get a good call, and a remote call decoy. I have some of the mouth calls that I've used in the past when turkey hunting to lure one in that wanders in to the area.
Making blind sets requires an electronic calls because most of the time your calling for 30 minutes or so. The electronic calls can work by themselves, but the decoy gets the coyotes attention away from the shooter so you can re-position if necessary without spooking them.
Bobcats, you don't want to use a decoy.