One of the great traditions that the Cook Chapter has is bigs and littles, but it goes beyond that. Family lines are important to the members of the chapter, even after the pledging semester is over. Recently, many families have started the tradition of the "family dinner". Most families do a potluck style dinner, cooking anything from mac and cheese to chili. Bigs, grandbigs, siblings and cousins come together to catch up. It is also a great way to introduce new pledges to members of the fraternity. Many members look forward to their family's dinner each semester.