Jeremy
While sitting in your stand mentally picture where the deer will probably come from and where you should try and take your shot. I usually know where most of my deer come from so I try to pre-determine that if I see a deer coming down "x" trail I will draw at "x" point and take my shot when he reaches "x" point. Sometimes the deer don't always follow the trails I expected but it really helps take the surprise and panic out of the situation.

I hope you didn't take the shot at the 6 pt while he was walking towards you.