From Longman Dictionary of Contemporary Englishhave a trick of doing somethinghave a trick of doing somethingUSUALLY British English to have a habit of using a particular expression or of moving your face or body in a particular wayShe had this trick of raising her eyebrows at the end of a question. →trickExamples from the Corpushave a trick of doing something• But the agents have tricks of their own.