There are lots of trails on the woods behind my house and the great thing is most of them are marked so hopefully you won't get lost. Being in the woods can really get confusing especially if you are not paying attention to your surroundings.
You definitely want to pay attention to your feet so you don't fall but you also need to scan the trail ahead of you. You never know what you are going to come across.
Here are some pics from my trail runs last week: