Depends on the setup. If you're nestled into a wall of briar bushes facing into a thicket with plenty of cover and a few open shooting holes, it should be easy. If you're sitting under an oak tree in open hardwoods, it would be a lot tougher.
I personally like to find a tree to lean against, with as much undergrowth around/behind me to blend into. It's even better if you're more in the shade than the deer are. You probably want some bushes/ground cover in front of you too, but not so thick that you can't find or make some openings to shoot through without hitting sticks. And make sure your cam will not hit the ground or your leg when you shoot.
Draw when the deer is looking away, has its head down, or is behind something. Be as smooth and still as possible and try to have the bow ready to draw as you hear one approach, before you can see it.
Also probably most important is the wind. You aren't elevated so if they are downwind, they will definitely smell you. Approach downwind if possible and have the wind in your favor.
If you shoot right handed, sit so that your shooting lanes are straight ahead and to your left. You want as much cover behind and to your right as possible, and make sure all limbs are cleared that could interfere with your bow or your elbow when you draw back.
This is my personal approach, and definitely not the only way to do it. I am still learning how to kill em from the ground, and haven't killed too many that way myself. I've had a few close encounters this year with small bucks that I didn't want to shoot, that I feel I could have shot if I had wanted to. Killed one doe from ground behind a buddy's house, and killed one last year walked up on it bedded down.
Can you rifle hunt the property? More of my rifle kills were from the ground than in a tree.
Good luck
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