Come When Called
Guinea pigs can be trained to do simple commands using food. You can teach your small pet to come when called by saying his name and then giving a treat. Do this repeatedly until you notice your guinea pig looks at you when you say his name before you give a treat. Next, say his name and hold out the treat from a few inches away and wait for him to come to you. Be sure to give a treat and praise your small pet. Gradually move farther and farther away when you call his name, always offering a treat once he comes to you after you have called his name.
Sit Up And Beg
Guinea pigs can also be taught to sit up and beg. Sitting up is a natural behavior for guinea pigs. Offer your small pet a treat by holding your hand above his head and when he sits up, give him the treat. Add a verbal command once he responds by sitting up consistently, and eventually, your guinea pig will sit up when you tell him to, waiting for a treat.
Litter Box Training
Guinea pigs can also be litter box trained. However, it is not always reliable. Sometimes they will use a litter box and sometimes they won’t. Place a litter box in the spot in the cage where he goes to the bathroom most often. Put a handful of hay inside the box, along with a few fecal pellets. When you see your guinea pig use the litter box, give a treat as praise. Ignore mistakes he might make, but reward when your small pet when correctly using the litter box.
When training a guinea pig, always use his favorite treat. Give a reward the moment he performs the behavior you want. Ignore him when he makes a mistake or gets it wrong. Never scold or punish your guinea pig — use only positive reinforcement.