Brazil is the only South American country that uses Portuguese instead of Spanish. Other useful clues are the black-backed street signs and the segmented poles. Brazil often has very reddish dirt by the roadside, not unlike the dirt colour in Uganda or Australia's Northern Territories.
Plates
Full-width white plates with black text. Starting in 2018, new plates have a thin blue strip along the top, so new and future coverage might include those plates.
Road markings
Brazil has either single or double yellow inside lines. The outside lines are usually white, but can sometimes be yellow. I'm not too sure about the pattern of this
Road signs
The biggest tell for brazil is the black-backed road signs.
Bollards
Brazil does not have official bollards. You can occasionally find a rare one though.
Poles
Brazil poles are unique - the bottom half is like a ladder with wide indented segments (but not holes), and the top has small circular holes punched along it. The poles are wider at the bottom than the top
Scenery
There is a wide variety of climate in Brazil, from desert in the far east to the Amazon rainforest in the west.
Car metas
Much of Brazil is covered with a white car which only has a small silhouette visible. However, there is also a variety of other cars.
Area codes
Area codes in Brazil are a good way of narrowing down the region. As a general rule, the codes are smaller in more populous regions and larger in less populous ones. Area codes are almost always written in brackets - e.g (35)-nnnn-nnnn.
Architecture
Amapa roof
Miscellaneous
Brazil states each have their own flag, and it may be helpful to know.
