Why? Do I have to draw pictures here or are there people here who would move their stand rather than shoot a deer they see standing if front of them?

If I'm in a tree, in a wide open woods full of acorns and I guess I have to EXPLAIN this part to some people. If you are in that situation AND NOT CURRENTLY SEEING A DEER RIGHT IN FRONT OF YOU, then I'd turn my tree stand ON THE TREE to be facing in to the wind IN A WIDE OPEN WOODS WHERE DEER MAY COME FROM ANY DIRECTION.

For the compete novices out there, you are less likely to see a deer coming toward you from down wind where they are likely to smell you further away than you are to see one wander toward or past you on the up wind side. So with that complicated thought still cemented in your mind, turn to face that direction while you are looking for deer.