You may encourage a timid cat to come out of her shell and play by giving her catnip. Catnip spray may be used to rejuvenate toys that your cat may be neglecting in order to persuade your cat to play with them again. Catnip might help your cat become more interested in a scratching post. If your cat has gone through a difficult period, a session with catnip will help her relax and blow off steam.