Guinea pigs are prey animals, so basically anything they aren’t 100% sure of makes them freeze and pretend to be dead (already dead things dont get eaten by many things in the wild). There other instinct is to run and hide if there is anything close enough to hide under, so they will stay under or in things if they get the chance. Remember this when they’re running round the living room!
Guineas also have very bad eyesight, so you need to talk to them constantly when your near them, they will recognise your voices and feel reassured. Don’t pick them up if they don’t want to be picked up just yet, tempt them with veggies and they will let you pick them up quite quickly.
I have 2 pigs, one very friendly and outgoing who loves an adventure, the other is really shy and will hide at the first noise, both have been treated exactly the same in the 4 yrs I’ve had them, it’s just down to personality. The quiet one does love a cuddle with us tho and will actively try to get to me when she hears me.
Food wise, clean fresh hay, more clean fresh hay. 80% of a pigs diet should be hay. They also need a constant supply of pellets and fresh water. Not the mixed food you can buy, that’s like giving a kid a constant supply of cereal with marshmallow etc in it, they basically pick the bits they like out.
Fresh food wise, a handful per pig twice a day is plenty. Watch how much vitamin c you give them as it can cause stones inside them.
Not too much fruit as it will give them the runs.
AVOID anything onion or potato based and rhubarb, it’s poisonous.
If your not sure what is ok to give them a quick google will usually tell you.
Mine love parsley, basil, green leafy veg, tomatoes, spinach, lettuce (not iceberg, it’s too watery) kiwi, pea flakes.
A brilliant place for advise is www.theguineapigforum.co.uk/
Very helpful people with lots of experience