How to Worry Friends and Inconvenience People

Say your mobile phone number when you answer it

Get in behind someone on a revolving door

Zigzag down escalators like you’re on a moving stairway in a musical

Loudly clap and cheer with recognition and delight when a film mentions its own title: “We’ve got to go back… to the future!” Yay! *clap*clap*clap*clap* Wooo!

Mime asterisks with your fingers to emphasise a word in conversation

Buy a relative progressively cheaper Christmas presents, then, one year, spend five times as much as the year before

Play “Where’s Wally?” on the Tube instead of Sudoku

Look through a different person’s window each day of advent