Newsround's festive advent calendar 2015 - 10th December
10 December 2015 Last updated at 06:29 GMT
Every day in December we are bringing you a different Christmas tradition or joke from children who watch Newsround as part of our 2015 advent calendar.
If you'd like to send in your own special family tradition or festive joke to be considered for the calendar then click here to get involved!
Today's Christmas joke comes from Rosie - take it away!