Aperitivo is an Italian tradition, a favorite past-time and a cultural necessity. There are many ways to enjoy this early evening social snack (it is the original Happy Hour, actually), whether it be wine or cocktails, but during the summertime, when the air is hot and your skin is tight from a day at the sea, the most popular drink is the Aperol Spritz. It is a very simple concoction, yet it is so refreshing, and the gorgeous, cheery orange color is enough to lift your spirits and put you in the mood to celebrate.
It's sunshine in a glass, really. "Un Spritz" is so easy to order anywhere in Italy that one can get quite accustomed to the consistency of always getting a good Spritz. Unfortunately, when you leave Italy, a Spritz seems to be a foreign concept and the mere mention can bring a confused look to even an experienced bartender. My friends that leave Italy experience a period of Spritz withdrawals when they realize that it is nearly impossible to have a fix outside the Italian border (which is similar to my experience of ordering a Monaco outside of France, but that's another story).