communication is absolutely essential to navigating in this world, and cariocas are certainly not shy about connecting with other people - a brief encounter, as simple as sparking up a conversation while waiting at the bus stop, is likely, even if the other person does not understand english. 

the fluidity with which cariocas enter into conversations, strike up a friendship, and make plans with other individuals, never fails to amaze - body language is also very important to take notice of at all times - it is a great feeling for visitors to know that they are acknowledged, even if there is a language barrier.