We use positive reinforcement for training and clickers to let him know just what he is being rewarded for.  He loves to learn, work and show off his stuff.
We are always working on new tricks and sometimes they also fit into Canine Freestyle. For Pick a Pocket he learned the trick of taking my wallet and running away with it. He is such a good boy it was hard to get him to run away.  He kept trying to give it back.