Helena Bonham Carter's favourite thing about Christmas is that it makes Londoners friendly.

The 47-year-old actress - who lives in Belsize Park in north London with her director husband Tim Burton and their two children - thinks the best thing about the festive period is that it brings festive cheer to her neighborhood.

When asked to share her favourite Christmas tradition, Helena said, "Going for a walk in the morning and seeing strangers in London break their year-long habit of unfriendliness and actually smile and say hello to one another."

The BAFTA Award winning actress - who stars in this year's highly anticipated Marks and Spencer's Christmas advert alongside supermodel Rosie Huntington-Whiteley and David Gandy - also described the signature scents of Christmas as one of her favorite things about the holidays: "All the smells - cinnamon, orange and spice."

Helena will surely look forward to indulging in her favorite treats at Christmas time, including crisps - which she admitted she is addicted to. When asked what her most lowbrow indulgence is, Helena previously said, "Stuffing my face with salt and vinegar crisps, alternating with cheese and onion - Walkers, not posh Kettle Chips."