The most common thing Tyree has been hearing as he walks down the streets of Luanda is not gringo or mzungu or whatever the equivalent may be here. No. He most often hears shouts of "Jesus Christ!" or sometimes exclamations such as "Bem-vindo à nossa terra!" or "A final, o Cristo chegou!"
We assume it's because of his beard and long hair, and not because of his halo or bleeding heart.