ORIGINAL: Furync
Do you have a sling on your gun?
if you answered yes, remove it.
I've seen too many hunters walking up to their stands or whatever with their guns on their shoulder, just looking at the deer run away...
Sling it on your off shoulder pointed down at the ground, then it is just as quick to get to your shoulder as a rifle without one, and you'll have the help of the sling with the shot. [8D]