Yes. It happened today. I'm so happy for that.
I was in the my friend's big house, who was decendent of Japanese, playing video-game, but I did'nt talk anything to him. When I was going to his bedroom, his relatives arrived, until then unknown for me. It was an extended family.
First, I spoke with a little boy and a little girl: "Hello, what's your names?". "It's ..." (I can't remember what they said) - said they. "Nice to meet you". "Nice to meet you too." They were so nice to me.
Right after, the rest of his relatives sat on the cough and talked to me. His sister exclamed "Vitor, you speak English!!" and I said "Yeah".
His mother and aunt were dressed of Indians - I don't know why.
I spoke so naturally with them all. As I woke up, I wrote down what can be seen above.