Well it depends on the age of the citizen. Folks over the age of 18 can influence the government by simply voting. But, everyone can influence the government. For example, a group or band of High School students could have a protest against how Trump treats women. You could also go to the official website for your senate, representative and even your president. That can simply influence the government.
~I hope this helps~<span />
The goals of the U.N is to keep nations from warring with each other and it basically prevents a nation from taking over the world, and it does its job better than the league of nations did. The U.N is mainly democratic and it deals with foreign policies in the US almost the exact same because both will first try to stop any conflict, and if that does not work start to stop trade, and if that does not work then intervene with military force to stop the conflict. domestic problems and foreign problems are discussed with through a vote in the UN and the US, if the vote wins to intervene in a war the UN intervenes, if the vote that involves not intervening in a war wins the UN does not intervene.
Brazil is a country that has very interesting culture which is the result of the mixing of several different cultures. What is now Brazil has been colonized by the Portuguese people. As they did, they started to settle in, but it was not just Portuguese that settled, there was also lot of Italians as well. As they were the ones that controlled this area, they set up the basis for the modern day culture of Brazil. But that is not all. The colonists encountered lot of native tribes, and over time the natives and the Europeans started to mix. Also, the colonists brought lot of African slaves too, and once the slavery ended, they too started to mix with the Europeans and natives. Each of the three sides contributed with their own cultures, gradually creating one melt resulting in the modern day Brazilian culture. Some of the well known traits of the Brazilian culture is the dancing, carnivals, masquerades, practicing of old traditions, being passionate Catholics, having excellent football skills based on the ginga etc. The ethnic composition too has been influenced in the same manner through the mixing of the people from three different races, making the modern day average Brazil having genes from three sides of the world.