Join Date: Jul 2013
Location: Someplace cold and snowy surrounded by dogs ;)
An Excellent brain exercise is the "find it" game. Hide something, treats or a ball, and have the dog find them. This game has really tired my GSD's brain out when I need it. Start off doing this in plain sight, then telling your pup to "Find it!" then when they know what the command means, do it when they aren't looking. This game can also progress if you want to something like "find your leash!" or "go find your dish!"
Get him involoved with a sport if you can, even if you don't compete, just do it for fun.