Patience, and pray the wind don,t swirl, that has been my biggest downfall I work for hours to get close enough and then blow it. Did it this year on a real large deer He had 7 on a side with about 12" stickers going straight out, crawled up to 20 yards, waited for awhile for him to move then my mind started to play games with me I couldn,t see him from where I was and talked myself into believing he wasn,t there anymore so I stood up and started to walk up there at 15 yards he just blew out of there straight up a bluff and I,m still totally disgusted with myself.