Puppy socialization advise
I have a 12 week WL GSD from a good pedigree. He has solid nerves, but is afraid of other dogs. He will bark at them quite boldly, without raising hackles, but when the visiting dog comes near, will retreat on the flexi leash and avoid meeting the dog. If the dog leaves he will follow and bark at it quite boldly. He has not been attacked by any dog, and his puppy videos actually showed him to be amongst the dominant in his litter.
I was wondering what's a good way to socialize this dog. Should I wait for him to grow up some more ?.