rush hours are inevitable in major cities like rio de janeiro - it is important for men during these hours not to enter the 'women-only wagon' seeing as it is in operation and those who try to sneak in can get fined and expelled from using the service.

if traveling with a backpack or purse, it is best to carry it on the front, seeing as it helps from bumping into other people, minimizes space and prevents robberies.

bear in mind to stand behind the thick yellow line painted on the floor as well as wait patiently and with distance for the doors to open - entering the metrô with glass objects are prohibited unless covered with a plastic bag.