The magazine totally devoted to dog training is available by subscription only. It's not available on newsstands. Regarding hand signals, dog has to be looking at you in order to respond. Dog is Never, ever to be off lead in an unfenced area. Take your time ,be patient,get dog to totally focus on you, make training fun and interesting, and things will work out just fine.
Some deaf dogs seem to love chasing a flashlight beam.
Several other deaf dalmatians on the mailing list behave similarly, while I have only heard of one hearing dog that reacts this way. Some of the other dogs on the mailing list don't have any interest in flashlights though. I've found flashlight games to be both useful and fun. I often take Cairo to a nearby fenced in baseball field and let him off his leash to chase the flashlight beam. If your dog starts progressing in this direction you should probably stop playing flashlight.