Your breeder is your first person to talk to... besides the conformation quality, there is also the matter of papers. If your pup was sold to you with limited registration, you have to have that switched to full if you want to show conformation.
If your breeder was like my guy's breeder (does not show or compete, etc) then yep... I agree with Penny's Mom. But my way of doing it probably would be contacting the local golden retriever clubs for advice - as to where to train, which shows to go watch, and so forth. If you want to show in conformation or obedience or agility - puppy classes and obedience classes after that are a must for socialization.
^ Yep.Absolutely need full registration to show in conformation...you can still show in obedience,etc. I second what everyone else has said.. check with your breeder, contact breed clubs, find a mentor... Most pups that will be shown are sold as show potential, but things can and do change...