I really cannot add much here. You are getting lots of good advice. I would say that the most important things said is to make sure the wind is in your face, when you hunt is when the sun is on your back if possible, the main part of your blind should be something they are accustomed to already like a dead fallen down tree, stay still. If you change the appearance of your fallen tree or if you use a ground blind you might have to wait a few days to a week, but thats not always the case. You can put up a ground blind and they might come right up to it the first day. They are more likely not to be spooked by it if you bush it up. I really like ground blinds because they work if you use them properly. Good luck!