Since she was 10 weeks old. When she would come, I would congratulate her profusely. Pat her, sometimes give her a small treat.
She associated coming when called to reward. Now she comes whenever I call. It takes a few weeks to get there. Periodic reinforcement is then all it takes.

experienced trainer.

The puppy training class is useful, not just for the puppy, but also to train the human in his role as the puppy's guide and teacher.

The irregular reinforcement at home is for two reasons:

1) because irregular reinforcement trains behaviors faster and more lastingly than consistent rewards (think of gambling addicts)

2) because you don't want her to think she must always be rewarded for compliance.

Those little breeds can be antsy and thus more difficult to train, but they bond very tightly to their humans, so that makes them eager to please. Encourage that bond, and she will come whether you want her to or not.

Thanks. We just need to be patient.
I'd never let her off her leash for instance. Too afraid she would bolt.

both my kids and my students:

Never let your dog off leash unless you are 100% sure he will obey you, because if the dog gets away from you, you call him back, and he doesn't obey, he has learned a truth you never want him to know, which is how little power you actually have to enforce your commands and control his behavior.

The key is to think like a dog (or cat). See life from their perspective.

One mistake that people often make is that they repeat the command over and over when it is ignored. That trains the dog to ignore the command.

If the dog does not come when called twice, go get the dog and let the dog know you are displeased (not punishment). Displeased, because the dog fundamentally wants to please you. I would walk the dog for the next minute on a very short leash after it didn't come; uncomfortable for the dog, but not hurting.

Sometimes when training my pet (cat or dog), I would pretend to cry and be very sad when they did something wrong. They are sensitive for emotional cues and don't want sad owners. For example, if they excreted in the house, I would be making unhappy sounds while cleaning it up in their presence; rubbing their nose in it misses the connection because then they think whatever they did immediately before was bad.

Re point 2, even just a calm slightly upbeat "Good dog!" is a sufficient "reward". Essentially it is a relaxing feedback so the dog knows "I did the right thing, master is pleased".

Since they love to be brushed, I can show them a brush and they will all come running.

She still doesn’t.

That’s a cute puppy.

then tie a line to the dogs collar and pull gently on the command of ‘come’. Doggie gets a treat when desired behavior demonstrated. Increase distance over time.

but MAN, that's an adorable puppy!

Guess she thinks that since she is so cute, she can do as she pleases, and no one will get upset with her. I know I couldn't!

...whenever you call her name and say "come". Seems silly, but she will look at your face and come for the treat. This teaches her to look at you (at least) whenever she hears her name, and to come for the treat.

Always, praise and pet her when she comes. Then stop holding treats near your nose every time, but always verbally praise when she looks at you and starts to come... Praise her when she shows the intent to come... not necessarily after she actually comes. Eventually, you won't need the treats, and she'll be happy just to receive the praise. Train in various places, surfaces, on grass, on concrete, in the kitchen, etc. Dogs seem to think commands only apply to one context (e.g., on grass) unless they are trained on a variety surfaces.

Here is a link to my favorite dog trainer... I've been listening to him for the nine years I've had my adopted baby girl, Shiloh. She is a model of good behavior based on his positive training approach...

The dog owner has to learn some basic things in order to train the dog. That is what the obedience trainer taught us when I had to train our puppy. Before giving any command, say her name to get her attention. Gypsy, sit. If she doesn’t sit, push her butt down so she is sitting. Then a small treat and verbal praise.
Same with down.
Come is a little harder. Put her on a lease and hold onto it. Say Gypsy, come. Hold out a treat and have her come. If she doesn’t pull the lease toward you and she will come. Then comes the treat and praise. Constantly reinforce these basic commands. She will need these basic ones in order to be a good dog and one you can share a house with.
One last thing, use the same words for the same command. I knew someone who used to say lie down, down, lay and probably other words for the same command. That confuses a dog, particularly a puppy.

To do basic doggie obidence training like sit and come, I use some really yummy treats like peanut butter or bit of chicken or liver, and a slip collar or a slip lead to keep control while I teach the command.

Stand a couple of feet in front of the dog and call her name to let her know you want her attention, then say "come". Follow with a little twitch on the leash to get her started if necessary. As soon as she takes those few steps toward you give her a treat and lots of praise. Tie a light rope to the leash and gradually increase the distance between you. Keep the training sessions short, 10 minutes is fine, and these can be repeated during the day, always end on a positive response.

Repeat until the command is learned. Don't skip a day. This varies by breed and individual dogs, but if you're persistent, generally most dogs should learn the "come" command in about a week.

go w her only getting food from your hand.
start by just saying her name and tossing her a little kibble. every once in a while, jackpot her. toss it for a minute or 2, a good handful for her to track down and eat. dogs are gamblers. as mentioned above, irregular reinforcement is good, but in the beginning, it is better to toss an occasional jackpot than to withhold.

only give her a little food in a bowl, preferably in a crate. make her work for the rest.

lots of good info at leerburg.com. lots of free vids, and advice.

Is her hearing OK? She may just be a little arrogant, although she looks like an affectionate dog.

My chocolate lab really only listens when he is sleeping

Was a puppy book said to put a harness on them and a leash and clip them to your beltloop all day or at least whenever you're home for two weeks plus, early on. They learn you are alpha and the leader. Well of course, your are dragging them everywhere, in a way! It was my 1st dog and i was nervous. They said you would also get a good idea and cues to when they needed to go out, which i was very much concerned with house breaking.
She's a 4 lb mini-pomerian and was the size of a squirrel as a puppy.
I dont know if this was magic or not, but she's a compliant dog.

train for very short time periods no > 5 to 10 minutes @ a time

Have the dog on a short lead and say the dogs name and then say come!

Pull the dog to you .... be gentile

When the dog gets to you give it a small treat, say good girl good girl, and give it some love

start woking with a longer lead after a few weeks

in about 6 weeks to 2 months start doing it w/out the lead. short distances @ first

getting your dog to come when other dogs are around takes a little more advanced training

BTW it is very important that your dog gets to spend time w/other dogs ... they get bored/us
and need to talk and play w/other dogs.

So, I asked how she gets the animals (sheep, dogs, chickens ducks and pony) to come when we called. She says, when they are young, always call them by their name before you feed them.

They learn their names pretty quickly around here. You fail to come, you get less food. She says never give them food without calling them by their name first. Now many of the smarter ones come whenever you call out any name. I think they are checking to see if we decided to change their name

Don’t use her name when scolding.

She’s adorbs.

Is there a Humane Society in your area? They usually have programs to train puppies and dogs. The one we have is excellent and I’ve done some obedience training and agility and canine citizenship classes. Several years down the road, they don’t always obey, but I think this is a matter of selective hearing and a well-developed sense of superiority that makes them believe that they are exempt from obeying commands.

She's still young and swept up by the many curious things in whatever space she occupies at a given time. Keep trying and offering (tiny treats, praise) rewards, when she obeys.

I assume she has no hearing problems.

It's more like, there is something more captivating nearby that grabbed her focus, and she can't quite hear that familiar, distant voice, trying to get her to respond in a particular way. Keep on, keeping on, and best wishes.

I know a lot about dogs.

Let me know answers to the above questions and maybe I can be of help.

Mr. CAV is a retired farmer. I mentioned it to him.
His first questions was, "Can the little dog hear?".

Smart questions and the answers might provide a clue as to what is going on.

Very cute in any event!