Do anything you can, I have broken off pine tops and used tie wire to make cover on a stand, even tied them to tree limbs. Last artificial Christmas tree we threw out I took to the camp. I have brushed up some stands with the bigger limbs off of it. Anything to break up your outline.
Also, you can kill deer standing on the ground, but I sure like 20-25 feet in the air, really helps to be above their peripheral vision.