Look out behind you.
It doesn't matter. If the monster wants you, it'll get you. (Seriously, what is wrong with that mother? And what's with all the cats?)
Unless, of course, you have the code word (sorry, I'm a sucker for this clip):
P.S. These are great examples of building tension, dread, and terror. In the second clip, I'm not sure we even have to see the leopard to feel that girl's fear.