Water spray doesn't work it is also a punishment and when you use punishment to train your dog it takes a lot longer than more positive methods. Clicker training is very good especially for puppies.

You are also teaching your pup to be frightened of you, is that what you really want?

Would you use a water spray on a toddler when they didn't do as you ask? It is the same thing, like the toddler, a puppy has to be taught what we want of them.

Clicker training really is good for both owner and pup, it also strengthen the bond between you unlike using a water spray, that destroys the bond and make the pup frightened.