Argentina is a unique country in that most of the locals are of Italian, Spanish, or French decent and their etiquette and traditions are shaped by the cultures all of those countries. You'll find that the people there are generally very laid-back, but in order to blend in and respect Argentina, it's wise to follow their etiquette.
Impress your friends and colleagues in Argentina by showing off how much etiquette you know! Especially when it comes to socializing and business etiquette, be prepared. Have a wonderful trip to Argentina!