If you can, you'd want to get your body into a shadow. Make sure something is behind you that breaks up your outline. When you're not in a shadow, even with concealment gear on, your movement sticks out like a sore thumb! And for sure you can't make any noise. At least, not while the caller is in between calling. I whispered to a hunting partner about a Grey Fox that showed up across a ravine. Son of a B if he didn't bust me! Their hearing is insanely good. Be on the lookout for Gray Fox as well. You may find that they come in a lot more frequently than the yotes depending on where you are. And right now they are legal (after 11-24, check regs for end date).
More experienced guys have told me don't start your calling on super high volume. Just in case there happens to be one that is relatively close by. Slowly bring the volume levels up. And when you see them coming in, I've been told you will want to slightly lower the volume down accordingly so as they approach it won't seem unnaturally loud and make them figure something is up.
Regarding busting you... oh yeah... it's crazy! You'll be contemplating turning on your red headlamp light because first light hasn't yet come in strong enough for your human eyes to see the ground very well.. (because you are craftily choosing to cleverly go up a draw to make your way into and up to an area of good visibility you decided ya wanna put that decoy at) and BOOM... ya hear 'em behind you... back on the flatlands you had to drive thru... they're yippin' to their buddies to watch out for the human!
You gotta think about all that when setting up your setup. Getting in there in such a way that you minimize how much you're seen. Thinking about how they will try to swing around to the downwind side of your setup first before they attempt to come in. You wanna be at that crosswind position to hit 'em while they're swingin' around. When possible set it up such that the morning sun is in their eyes along the pathway they are most likely to come in from initially because of the wind.
And big thing I can't stress enough is make sure for your sit spot you choose... you actually sit down and look upon where you've setup the decoy and caller. Sometimes your choice will look great, look primo... but then you go to sit down and realize once you sit down that the low brush between you two that you thought would be good for concealing lower half of your body is just high enough you can't see over it well enough, making it not work, that kinda thing.