Very good point from laminas. The idea is to not give affection for any behavior you don't want to encourage. For example, if your puppy is very fearful, whether with loud noises, or a car going by, or anything else, the worst thing you can do is try to give comfort as you would to a human child. The puppy will only learn that he'll get rewarded with affection when he acts fearful. Make it a game. Just laugh it off and say in a fun voice, "well wasn't that silly!" or some such, and move on.
If you're trying to house train your puppy, much depends on your pup's age and how long he can physically hold his urine and feces. You can't ask him to do more than what he is capable of doing. Loudly voiced threats, threatening behavior, and worst of all - rubbing a pup's nose in his waste will not give you the results you want. As with any other training exercise, the correction must be given the instant the unwanted behavior occurs. If you come in to find a pile of excrement, that teaching moment is gone, so just clean it up and forget about it. Watch closely and as soon as you see your pup assume the position, say, "No" and immediately take him outside to where you want him to eliminate. When he does, heap on the praise. Pretty simple. :-)
I think there would be literally hundreds of tricks and tips people have for training dogs. I think it depends on what you want to train your dog to do.
My puppy is nearly 5 months old, so I am just through the hard training part. I just have to keep him on track now.
The one piece of advice I can give you is to NOT be soft on your puppy. It is very hard to be strict on a puppy when he is so very cute and cuddley. Don't let the puppy get away with naughty behavour. You don't have to be mean to your dog, just firm and persistant.
And by all mean, when he/she is being good, you can lap up the cuddles then.
LOL! Well, that's a loaded question. How old is your puppy? Can you tell us more about her like breed, general temperament, etc.? If you're new to puppies and dogs, your best bet will be to go to dog school. Petco and PetSmart usually have in-store classes for a low fee. And we want to see puppy pics! :-)