Hello and welcome!
If you're looking for a puppy of a certain breed, ask lots of questions! The more you know in advance, the easier it'll be to make an informed decision. There are many helpful people that frequent these boards and you'll most certainly get good advice!
I'm firm - but fair. Mind the rules and enjoy your stay.
According to the Humane Society of the United States:
There are an estimated 3-4 million dogs and cats euthanized each year in the US alone! PLEASE - spay and/or neuter your pets!