I see all you guys who have posted so far are all from the west. Here in NY, stalking is almost non existent,at least where I hunt. I hunt all forested hills, with few if any fields or open places.Still hunting is an option when ground conditions are favorable.Crunchy forest floors are usually the norm during our Whitetail season, making sneaking up on them next to impossible.It's difficult even when conditions are good, as wind is always shifty due to the topography.With all that said I will attempt to add to the subject.
If the ground is noisy to walk on, there are two options while still hunting.
1} Walk abruptly until game is encountered and then attempt to intercept them upon their flight paths.
2} Work an area walking very, very slowly, using the wind and the lay of the land to hide your presence. Watch for game 90% of the time, walk (step} 10% of the time. Try to sound like a squirrel moving and feeding ect. When you stop, stop by a tree or other object to blend your body form.Once game is spotted, Crawling on hands and knees slowly like a patient cat can get you in range.
Also, Turkey calls can be used to fool while attempting an approach.
Hunting in favorable conditions
Tracking is now possible, using the above methods and methods used by other hunters such as the Boneits.
I could expound further, but good books have covered these subjects.