William told the Sandringham crowd: "We've had a good morning with George and I can't wait until next year when he's bigger."
Cicely Howard, 75, from Great Yarmouth, met Kate and asked about the baby.
She said: "She told me he was having a lovely day but was more interested in the wrapping paper than the presents."
More top news
Freezing temperatures, a biting wind and risk of snow into next week
Austerity and Brexit are dividing Britons and causing a "schism" in society, the Archbishop of Canterbury has warned.
A taxi driver has been suspended after inspectors found he was using a Costa Coffee lid as a fuel cap.