Although I find El Matador’s post on languages highly entertaining and a better policy than not learning foreign languages at all, I think it’s better to learn them right. You don’t need to be a master linguist but the simple fact is, in most of the travel destinations we recommend people really, really appreciate the effort to learn even of the most basic of phrases. It is a way of showing respect and interest in the culture and customs of the country. There is no better way to dissociate yourself from the typical douchebag western tourist.
You should really learn at least the following basic phrases no matter where you go at a bare minimum: