If your new puppy has just been separated from it's mother it is really important that you help it through this time period. When the doggy goes to sleep make sure that you put a ticking clock near by so that it will help the puppy go to sleep. Puppies love ticking sounds.
Also remember to have plenty of energy and love for your puppy because just like human kids a small dog is curious and needs lots of attention to help it grow. Make sure you give it enough love. And remeber, if you can't be a responsible pet owner don't buy a puppy, you can't be lazy with this animal.