Learn and practice shooting sitting down. I can't remember the last time I shot a deer standing up. even in a blind you have to sit down and shoot. a deer believe it or not will pick a human out quicker when they are standing up. even when I am gun hunting I try to sit by a tree not stand by it, plus I can then use my knee to get a good solid rest when I shoot. the extra time and movement you are doing is that much more of a chance that the deer will pick you up.