Learn about what their activities are. Find their trails and routes. Monitor the wind. Don't use the same calls that everyone in the next three states are using.
I didn't get good at it until I learned to use open reed calls. Unique sounds will definitely peak their interest, so will the sound their favorite snack. Other coyote sounds will bring them.
Light breezes and calm weather boosts their confidence and gives them an advantage, but you can use it to your advantage. Gustier nights can make them not trust their senses, more wary and more cautious.
I've ambushed about half, maybe a touch more, by simply setting up on a trail with the wind in my favor and wait without ever using a call. Don't over use a call.
There's vast differences in wisdom among coyotes, some are quite dumb, some are smart.
Don't ever assume that shooting one scared the others off.
So many tips and techniques, don't let a dry run discourage you. Practice, luckily coyote hunting is usually free.