That is really an art and some guys just have a knack for it. When I was quite a bit younger, one of my bowhunting mentors was a state target champ but also an avid deer hunter. One day he fell of a 6' ladder in his driveway and broke his hip. After his surgery and during his recovery, he could not use a climber. I volunteered to go out and setup a bunch of ladder stands that we would share. The guy was amazing. We would scout and select a spot with good deer activity. No trail cams or anything back then, just sign. He would just stand and look around. He would walk 20 yards and look around again. He would walk 20 yards in another angle and just stand and look some more.
He would then say. "Put the stand on that tree. Orient it this way. Most deer will come from over there and when they walk past that bush it will give you cover to draw. They will be at a 45 degree angle to your left which is perfect (we were both right-handed)." I would guess he was right about 85% of the time. The deer would do exactly what he predicted. I was amazed.
I learned a lot from him. It took me years to get even close to his skill with it. Picking a tree where you will see deer is easy. Picking a tree where you have a high percentage chance of having a deer in bow range (20 yards for us) that approaches in a way you can come to full draw and kill it is amazingly difficult. I don't think I ever realized how important things like back-cover were until I started setting stands with him.
Thanks,
Jack