Begin socializing and training your dog at an early age.  Puppy classes are a good idea.   Terriers are fun loving dogs, they respond much better to praise then punishment.   Don't bore your dog. Terriers are too smart to be robots. Keep training sessions short and fun.   At home your puppy needs a consistent set of rules to live by. Everyone in the family needs to follow these rules. For example: parts of the house which are out of bounds.   Crate training is recommended for "potty training" your puppy at night. Removing the water dish 2 hours before bedtime will help. Remember your puppy has a limited capacity and should not be left for long periods of time in his crate. The Terriers natural intelligence and desire to please make them readily adaptable to obedience training. However other characteristics such as curiosity, independence and stubborness sometimes get in the way. The purpose of obedience class is to teach your dog to respond to your command under any circumstance. Along with this comes a mutual respect between you and your dog, and an opportunity to know him better. Although he may not like the repetitive and routine obedience of the novice class, a well taught exercise will remain in his memory forever. Keep in mind, he will not miss an occasion to make the spectators laugh. A good sense of humour is necessary when attending an obedience class with a Terrier. However, there are exceptions, and some Terriers do achieve very high scores in competition.