One of the easiest ways is to wait until after the season with snow on the ground. Their trails are pretty easy to pick out then, and you can get a pretty good idea of the corridor they are traveling.
But since you are seeking an answer for the here and now - I'd walk the place and look for trails. If the cover is dense and the area over grown you should be able to pick out well used trails. Even if there is not a lot of brush or grasses, look for worn down trails or dirt trails indicating a travel route. Also look for trails merging into trails which would signify a more well traveled route.
How do you tell which way they are going? If you find a spot where trails merge into one, then most likely the merging trails are moving into the single trail and the end of the single trail would be the destination.
Also, food sources tend to be at the end of trails, so if you find a food source at the end of a single trail that resulted from several merged trails you have most likely found a route that deer are traveling in the evenings as that is when they tend to head to the food source.
If you come across just one long, well traveled trail, hunt it morning and evening and see when it gets used most.
My experience has been that the same travel corridors tend to get used both morning and evening, though some more frequently than others depending upon time of day.
Again, I wouldn't worry about walking the place. Our season is still a month away, you should be fine and the woods will have had ample time to settle down before the season starts up.
Best of luck and enjoy yourself. Let us know how you do.
“There are two spiritual dangers in not owning a farm. One is the danger of supposing that breakfast comes from the grocery, and the other that heat comes from the furnace.”