Just took another one yesterday.
Be near good cover with open fields and a good water source.
Camo from head to toe and a good call (I use Primos).
I find my most successes are when I'm set-up near cattle.
Set-up in good cover or rock formations and call soft and infrequent.
Most importantly remain as still as possible.
If you have a small "critter" looking thing to use as a decoy, all the better.
Good luck !!!