
Short answer is yes you can, but it is best to have some idea, as you could find that you do not do as well as you might have if you and the dog were more prepared.
Saying that some dogs are natural show offs, and owners who have such a rapport that they can instinctively move them at the right speed and keep their attention.
If you have already been doing the local fun shows and competed in the pedigree classes you will have seen how to show a dog, as at least some of the people will be exhibitors going to give their new puppies practice.
The dog will need to be happy to be gone over (have someone fell all over it's body) have it's teeth looked at and testicles felt for if male.