Tudo bem?
“How’s it going?” (lit. “Everything good?”) A super-common informal greeting. The correct response is also “tudo bem”.
Legal
“Cool.”
One of the most useful slang words in the Portuguese language, you can uselegal to describe a whole host of things. People can be legal, as can clothes, places, and, ironically, gangster rap.
Como vai, gatinha? “How’s it going, baby?” (lit. “kitten”)
A pretty simple pickup line. I take no responsibility for what happens if you actually try to use it.
O Brasil é lindo maravilhoso! “Brazil is magnificent!”
Lindo maravilhoso is a Brazilian idiom which literally translates to “beautiful marvelous”.