A puppy does not have a long attention span so make training little and often. Training should always be fun and rewarding for your puppy. So use plenty of reward and treats; only train when your puppy is fresh and always finish the session on a positive note (when your puppy has just done something well).

The best way to teach your puppy is by the use of treats. Most dogs learn to respond to hand signals and body language more quickly than words (so start with a signal such as a raised hand to mean sit). If your puppy sits of its own accord use the hand signal or the word 'sit' and reward the puppy. If you want the puppy to sit press gently on its bottom until he sits and then say the word or give the signal and reward. It will not be long before your puppy associates the action with the command (and with the reward!).