
Judges 'should' make allowances for puppies in puppy classes. You might take a break from actual classes for a while, and concentrate on getting him to behave at home - for short periods as the attention span of a puppy, in a new environment too, will be short. I did a lot of stacking and moving training out on the heath with mine rather than at ringcraft. Years ago, people didn't go straight to Champ shows, which are expensive! but would do a few Open shows for experience. If the puppy settled and did well at such shows, then we'd go on to entering Champ shows. This doesn't happen as much these days (and Open shows suffer with their reduced entries!). Remember your nerves will transfer down the lead too. But overall, as a judge, if there's a class of good puppies, how they behave will affect the placings, especially if the judge can't get their hands on the exhibit, or see how he moves properly.
The advice - remember you bring the best dog home, applies