Friday feels like weekend already in a sunny day. December means Summer time in the South Hemisphery. A nice thing to do in the end of the day for a large part of cariocas (from rio) is to have a super cold chopp (draft beer), a caipirinha (cachaça - brazilian famous liquor - sugar and lots of ice) or just some tropical fruit juice.
What else? Enjoy the rest of the long afternoon and have fun :)