how old u talkin twelve weeks?
Here's an older thread where I had posted about working some puppies like I mentioned.
I usually start doing this when they're about 6 months old. I have a pretty good idea from just watching them around the kennels of how they will act before I ever turn them loose but occasionally one will surprise or disappoint me. Reading back through the thread I posted below, the Traveler dog was the one I had my eye on back then, but right now my Boulder dog is the one really wanting to act the part.
http://www.easttexashogdoggers.com/forum/index.php?topic=32570.msg245464#msg245464
