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."
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Rain spreading eastwards throughout the day.
Festival-goers have been enjoying the second day of the Glastonbury festival.