Does your local sporting goods store or pro shop have it? If so, I'd go in with your bow if possible and practice drawing as if you were in a hunting situation.

DaveC has a good point. You have to be comfortable shooting out of the blind and this often means sitting, kneeling, or even squatting while shooting. I just got a new blind and set it up the other night to shoot out of, practicing shooting out the various windows to see what position I'd need to be in make the shot. For some reason, I usually feel more comfortable and accurate practicing with my 3d in this situation as it feels more realistic.