Keep learning!
Watch every bit of video footage you can!
It is the next best thing to actual experience and can clue you in to how or what a coyote is thinking if/when you call one in. This may help you take a shot before they bug out!
There are a bunch of free videos on
Bucking The Odds.
Coyotes are smart! Like Art said, if they have a choice they will come in to a distress sound from the downwind side!
They have one of, if not the best, nose, eyes and ears in the woods!
Keep studying and have some patience and it will happen!
Oh yeah, take a camera! We love pics!