The intelligence of your Pot-bellied pig is in the range of a two to three year-old human. Given that, training can move along quite quickly.
Training for tricks can best be achieved with rewards. Use food treats – pigs, all pigs, love to eat. Some have been taught to fetch things, a trick which can take advantage of their ability to open most cupboard doors. Fetching newspapers is not recommended. Pigs love to chew them into wet wads and spit them about.
Expect the pig to take over your household. On the other hand, as long as you keep up the feeding, he’ll be reasonable.