Old blue eyes has a string still attached and it's eyes (his eyes I think) open and close when you lay him down and sit him upright. Mr No Eyes actually has eyes and if you wiggle him around they'll pop into place every now and then. Spooky!
My four and a half month old grand-daughter Mercedes squeaks when you lay her back in your arms and smiles when you sit her upright in much the same way. Considers it an insult to be held like a baby.