A daily part of tourism in ANY tourist area is tour groups. Whether the groups are from another state, another country or the church in the next town over, they arrive by the busload and give lots of money to the hotel and restaurant industries and, in the case of Central Florida, the theme park industry.
Although tour groups come to Orlando from a lot of places (Argentina, Peru, Paraguay, Uruguay, Asian countries, etc), the group that tends to gather the most reactions are the ones from Brazil. Those groups tend to be kids (girls more often than boys) in their mid-teens, they travel in groups of 25 or more and tend to have the same shirts, knapsacks, etc. They speak Portuguese, which sounds a bit like a cross between Spanish and Italian, but is not exactly the same.