The sounds they make, the way they look at me, the way they look at each other, the way they run around, the way they eat, the way they groom themselves, the way they groom each other, the way they snuggle into my hand during lap time, the way they sleep... hmmm, well, apparently I just like everything that guinea pigs do, and everything about the way they are.
And I love the way they never get cross with me, or put me down, and the way they let me sing along to my favourite songs (and occasionally join in). True unconditional love... all they ask in return is a nice safe home, and the occasional treat (like ten times a day).