Look behind you every so often when you’re hiking. If you think you’re being watched, chances are you probably are, and have been for quite a while. Bring a mirror as well. If you turn around you ruin the element of surprise for any hungry predators, and they’ll likely scurry away or at least give you time to escape. If you turn around and DO see something, start making as much noise as you can, don’t stay quiet, and do not, for the love of God, turn back around if you think it’s gone.