The "Amigo Gringo" videos offer a humorous mirror back on New York culture, showcasing everything from how to ride the subway to how to order a bagel. The videos are basically travel guides, but they're also "about cultural differences between Brazilians and Americans and how to deal with them," said Kugel, who is fluent in Portuguese, lived in Brazil for two years and is a contributor to The New York Times Travel section. The first installment got 25,000 hits in the first 36 hours — not bad for a non-celebrity in a series by an unknown startup company, Rede Snack. Brazil is New York City's No.