I've been working with the boys for almost two years now. In all honesty, they are so smart they have succeeded despite my attempts. Punishment and force as training tools (no, I've never beaten my dogs) was how I was raised ~ old school. When we started our first class I didn't know how well this old dog was gonna learn new tricks, mainly because this old dog wasn't convinced positive reinforcement "worked". I'm here to tell you "It does!"
Clicker training is actually really cool, especially when shaping, but I prefer to use "yes" as my marker. In other words, I immediately say "yes!" when the behavior I'm asking for is performed, followed by a reward. Rewards start out as edible treats. Since treats aren't always available in your pocket 24 /7 they are phased out and replaced with play, hugs, or simply a scratch of the ear or pat on the head. "Yes!" always lets the boys know they've done well.
Now, on to "leave it".
This can be one of the most important commands you can teach your dog to recognize. Do you really want them cleaning up after you drop the whole bag of chocolate chips that will lead to a visit to the vet? How about the baby's pacifier? Can they reach the 20 pills you just knocked off the counter from an open bottle before you do? Squirrel, rabbit, cat, or skunk (much more difficult with some dogs)? This command can be used in any instance that you want the dog to leave something alone, including people, other dogs, or even trash left behind on the path you walk daily.
It's quite simple and you'll be surprised at how quickly it is learned. You will need to regularly reinforce the wanted behavior so they don't get lazy and pretend not to know what you're talking about 6 months after the last time they heard it.
Take your time. Be patient. Keep training sessions short. Always end on a positive note (a command performed correctly). Repeat 1-3 times a day increasing your demands daily.
Once each step is mastered end the session. Start the next session with a few repeats of the last lesson learned for reinforcement and as a stepping stone to the next level up.
Step 1 ~
While in a sitting position, allow her to watch you place a treat in your hand. As she goes for your hand (to get the treat) close your hand saying, "leave it" at the same time. (It doesn't have to be loud, or harsh, but in a firm commanding voice.) The moment she backs off, or preferably looks at you, say "yes!" and give her a treat from the
other hand. Repeat this until the action is performed
without hesitation and she's staying in a sit. Then you're ready to move on.
Step 2 ~
Now that she is getting the idea of "leave it" the temptation is bumped up. (You'll need her on leash and able to stop her short of reaching the treat.) While she is sitting, place the treat on the floor saying "leave it" as you're doing so. If she goes for it, cover the treat with your hand or foot preventing access to it. Yes, she'll get a few until you get faster and are able to protect the treat. A hand on her collar can help too. Ultimately you want to be able to place the treat on the floor within her reach, have her leave it, and treat with "her treat" in your hand. The idea is ~ if you drop something on the floor you should be able to say "leave it", pick it up and reward her with her own treat.
Step 3 ~
Once you feel she is able to consistently "leave it" start tossing down a treat as you are walking using the command. Her response should be to look at you. She's looking to you for affirmation and this is a very good thing. Let her know she has done a good job and reward her. Always reward!
Continue using "leave it" on a regular basis. Find things to "leave" ~ drop things on purpose, tell her to "leave it" with cats, people as you're walking by, etc. I use it when my dogs go to the front to bark at kids, trucks, or whatever is going on outside. With regular use "leave it" can help you control your dog's desire to smell everything it passes and possibly save her life one day.