GP1 is quiet most of the time, he will occasionally squeak if you try to take him off the person he wants to stay with but he just makes a strange grunting noise most of the time. We thought at first that he couldn't squeak but we have now decided that he's just very laid back.
GP2 is quiet in the cage but when you come out the TV struggles to compete.
GP3 is noisy whenever he is awake,
GP4 is silent most of the time and is a loner but is trying to be friendly and now squeaks at the other pigs a bit and a lot when out of the cage being cuddled.
They are all different with food as well, GP1 will come and take whatever food is on offer and will run around with carrots and apples in his mouth.
GP2 refuses to take any food from your hand.
GP3 is stupid - he insists on taking the carrot/apple/whatever off GP1. GP1 just accepts it, now we give GP1 the smallest carrot, GP3 comes and takes the small carrot and then GP1 goes and takes GP3's one which was always the largest. GP3 is oblivious to the fact that he's been fooled.
GP4 likes hay and fruit and vegetables but is on hungry strike as the pellets have been changed and that doesn't meet with her approval. I accidentally ordered the muesli type mix and postage to return it is £15 so the pigs are having to finish the 30kg sack before I buy their normal food.