I never skimp on camo. Hands, face, hat, body, gun, everything is camo'ed out. Can't hurt. I read an article on turkey hunting camo years ago that said the bottoms of your boots will give you away when seated. Bottom of boots are black and stick out to critters. After that I started sitting with my knees up to hide the soles of my boots. Don't have any convincing data to prove anything. But I've killed coyotes a few feet away as they swung their heads around trying to find me/the critter i'm replicating with a call. I use a old cheap FoxPro for coyote calls especially the coyote locator, and multiple coyotes at once sequences. I use an orange primos mouthcall for all the screeching squelching noises. I use a turkey mouth call, the little diaphragm kind I keep in my mouth. That way if one is staring at me, and I need to move him a few feet to get a clear shot I can just give a squeak or two. I stop calling as soon as I see or hear a coyote. No matter how far. If they hang up far, I drop to prone and make a shot. If they are running in I just keep em in the crosshairs and let em come. If there are multiples running in I always aim for the rear one, the farthest one back.
It's very windy where I live/hunt. I mean like 30 mph winds is nothing to think about, kinda windy. I've read a lot on using the wind, but it blows so hard sometimes I can't even hunt except with my back to the wind. The call just wont penetrate into the wind so I put it to my back, prone out, and let it play out. Also, I've seen coyotes intermixed with cattle. Cows were just ignoring them. So I hunt some public land, and private land that borders cow pastures. I couldn't tell you how many coyotes live because they had cows downrange of them and I had no clear shot. On the days I naturally wake up prior to grey light I'll go stand in the garage with the window open, call out the window, and see what happens. Plenty of coyote and fox have fell because of doing that. They wont come close, but they will skyline themselves and yip and bark at me. I've even seen a wolf doing this. He was running from the call not towards it. But his curiosity did make him stop and have a look. But that's a story for another time.
I now use a suppressed rifle for coyote hunting. It's a game changer. If you have never been shot at suppressed it's hard to describe. But the bullet either hits you, or thumps into the ground with the crack of the sonic boom coming there after. It's very hard to tell where the shot came from. So if I miss a coyote, it nearly never runs away. It might spook cause of the sounds it did hear, but it won't take off like after a gun shot. This helps when there are multiple coyotes, and if you miss. Gives a few extra seconds to make a better follow up shot. Also I can hunt public land that just next to houses and not worry about scaring/angering the residents. I've killed coyotes on my property in the middle of the night after they woke me up. Didn't even wake the wife
If you can purchase a suppressor do it. It's a game changer in ways I cannot describe. Also not increasing my tinnitus is kinda important.
I read the coyote hunting magazines and forums and try NOT to do what they are doing, calling wise. There is a lot of guys that shoot/call coyotes around here, especially on the public lands. I've seen coyotes running fast away from me when I used factory prey in distress calls. All the popular rabbit distress calls that are electronic make coyotes run away. I use baby porcupine, baby fox, and chicken in distress initially, at very low volume. Then if I don't hear or see anything, I'll stop and wait a few minutes. Then I'll go into the loudest coyote calls I can find. Coyote locator (several coyotes yipping and howling all at once), or Coyote male bark howl. And I save the female lonesome call for last. I Don't have the patients to sit around for half an hour after all calling like everything says you are supposed to. That leads to me jumping coyotes on my hike out. So I always carry my rifle at the low ready position. I've killed several coyotes walking back to the truck. I guess I'm just impatient. There are so many places to hunt on public land that I don't frequent the same spot within the same few months. I just randomly bounce around to whatever public is nearby. I've been on construction jobs where I have 30 minutes to eat and went coyote hunting. Cross the road, drive up to public, toss some camo on, and tuck under a bush in the middle of the day. It's not very productive but it has worked. Especially when pups are just heading out on their own and not smart yet. And it's better then staring at some stinky coworkers while eating my sammich. Every time I meet or talk with a rancher I'll ask them to call me if they have coyotes around. I spray weeds part time and meet many of them. I don't really have any magic tricks, or secret squirrel techniques. On the days I don't call in a coyote I might spot some ground squirrels or badgers doing their thing. So there is always something to shoot.
I lived in the big cities for the first 33 years of my life. So now that I live in the country, I think I'm more motivated to varmint/predator hunt than some guys. Still have that little kid in me, that wants to go whack stuff that's trying to eat what I want to hunt.
Just get out and call. Camo everything, tuck up into some brush, and see what happens. It's just for fun so there isn't really any pressure to fill a tag. That's just how I do it. Some is laziness, some is what's worked before, some is just random stuff that I've never tried before. Good luck, stay safe, and always check your 6. They are sneaky sometimes.
One last observation. Coyotes don't seem to feel threatened by anything smaller than them. If you do need to reposition to make a shot go prone, and then move. I've been spotted by coyotes, prone out to move, and they just stare. I guess if you are lower to the ground then their line of sight, they think they are bigger and don't spook as easy. So if you do need to move with coyotes watching do so prone, and they will just watch, if they even see you at all.