If there's one thing ( other than agility ) that jen knows that I'm proud of it would be comming when called. This is what I did.

1: go to a fenced area, I used dog-park and tennis court.

2: let dog off leash and wait 'till she is a few meters away.

3: call dog and pull out tasty treat. ( I suggest last nights chicken )

4: gradually increase the distance from your dog before you call her.

5: enjoy a well-trained doggie.

Hope this works for anyone who's working on it. Good luck.