How does each country use this form of nonverbal communication? How does it compare to Northern Africa?

Each country has an interpretation and a very different relationship with graffitis. Not in all places and also not all people have the same way to interpret this way of nonverbal communication.
In Colombia the culture of graffiti was not as wide, but during and after passing the ages of violence, this movement has taken a lot of strength because it has served as a means to remember those times of darkness, besides that the artists used to show the problems of our society. This movement in Brazil is considered more artistic, but still many artists began these paintings protesting for the destruction of nature and now they do it for the corruption of Brazil. On the other hand in Argentina  the society is associated with the graffiti culture in this country exactly Buenos Aires people elevate the conception of graffiti to another level, the city is practically one art gallery. people support this form of art and not considered vandalism, there are not regulations for painting in the streets where the only limitation is the imagination of the artists. Finally Honduras is a country that suffers from a lot of violence and corruption so that the graffiti is a way to express to the world of Hondurans and among themselves what their situation because they are not allowed to show much. When comparing these countries with those of North Africa we can see that almost has the same caracteríasticas, it mean that graffitis tell the stories that are not counted, it also has its artistic side by many authors.