TIP #1: WON'T TRADE? UP THE ANTE
When practicing Drop It, if your dog doesn’t drop the toy/chew to take the treat, then either he likes the toy/chew a lot more than you thought, or he likes the treat a lot less, or both. The fix is to find a less interesting toy and more interesting treats. Remember that soft, moist, smelly, meaty treats usually trump dry, odorless ones.
TIP #2: PLAY HIDE AND SEEK TO STRENGTHEN RECALL
Training doesn't have to be laborious. In fact, it shouldn't be! Take some pressure off by turning your recall practice into fun and games. This can help you and your dog enjoy the training and take it to the next level. Hide and seek is a fun game to play in the house, in your yard, or on off-leash walks. It can be played with your dog knowing the game is afoot or as a surprise game, played at unexpected times throughout the day. It helps your dog learn to look for you when he hears your recall cue and, when played randomly, it also helps your dog learn to come when he's otherwise engaged.
- Whole Dog Journal
Jeff Dentler, CPDT-KA, IAABC-ADT, FFCP, CTDI