Stalking is my favorite way to deer hunt. Give me wet, quiet leaves on the ground and I won't be sitting in a tree stand. Here's my method:
A deer's first line of defence is its nose. The wind needs to be blowing from where to think the deer might be to you. Wind is face is ideal. Wind from the side isn't bad, but you loose the down wind side for hunting. Were clean clothes, shower, use scent inliminating sprays. RUBBER BOOTS are great. Avoid touching limbs with you hands.
A deer's second line of defence is sight. They can pick up movement very quickly. Wear camo and move SLOWLY. I call my method of hunting stand-and-stalk hunting. I never take over 3 steps without stopping to look around. This stopped time could last as little as a minute or as long as 10 minutes or more. To cover a half mile it will take me a minimum of an hour. Just remember the place you're at right now might be as good as the place you're heading to. Every step gives you a new perpective of the area your hunting.
Remember to watch you back trails if the wind isn't blowing directly that direction. If you're doing a good job of stalking, a deer might just as easily come from behind you as in front of you.
Listen, listen, listen. Even with wet, quiet conditions a deer can make noise. Try to identify the source of every sound you hear.
Squirrels CAN turn into deer. Just because you've heard and identified a squirrel as the source a noise don't forget to check it out often. Squirrel and deer both love acorns. If a squirrel has found a honey hole of acorns there's a good chance a deer will also. I can't count the number of times stalking and stand hunting when I've watched squirrels foraging only to turn around the next time and see a deer there.
Squirrel season probably opens before deer season. At least it does here in KY. Use this time to get your "wood legs" -- strengthen you muscle to move slowly feeling every little branch under your feet and be able to shift your weight so the limb doesn't snap.