1. Try to think like a mature animal when selecting a hunting spot. Pick spots that offer travel security and are just a bit "off". I have shot big bucks within 100-200 yards of the road/farmers house/etc, that others "passed by" hunting the "big timber".
2. I will often select a stand site that doesn't have as much sign as what can be found elsewhere, but offers some sort of strategic advantage. I often place stands at or near ridgetops adjacent to crop fields where a finger or point of timber/brush extends out into the field. I hunt just inside the timber opposite the point. Deer will dash across the narrow opening and then relax a bit inside the cover right below me!!
IMO big deer will cross an open field in these types of places. These spots can be identified easily with aerial photos/topo maps, in addition to actual scouting.
3. Get in and out of the stand without disturbing deer in the area. ( Much easier said than done BTW.)
4. Have fun, enjoy the nature in front of you, observe and learn. I usually only shoot at 1 deer for every 10 or so that I have in range. Pay close attention to them and learn from them.
5. Don't be afraid to move your stand as you learn more, I have even moved my stand late in the afternoon during what could be considered prime time and been well rewarded sometimes as little as a few minutes later. I can't say I have never spooked a deer either, because I have, but I would rather put my best foot forward and be satisfied with that than to be 10 yards off and wish I had done something.
6. Control your scent, I use predominantly HS Scent Away products. Always play the wind.