I don't recall about the specifics in Argentina, but in Brazil, it's customary to greet females by touching cheeks with them and making a kiss sound. It would m

I don't recall about the specifics in Argentina, but in Brazil, it's customary to greet females by touching cheeks with them and making a kiss sound. It would most definitely be very awkward if you (as a male) attempted to do it to a female american friend. Generally speaking, americans tend to be less touchy-feely. For example, it's common for close asian male friends to wrap arms around each other while standing side by side, whereas in US this act has a homosexual connotation.