Pisco, wine o beer, the important is play cards. Play cards was part of the "previa" in Chile but now is the best option to stay up all night long. With your family or friends, and the predilect (and less dangerous) game is Carioca. A game that let you talk, sing, and make jokes while are you playing and for that reason, take hours.
Learn how to play carioca on Wikipedia (spanish)