Complex sentence: This second man, Paulo da Costa Pereira, is of indeterminate origin; he speaks Portuguese, but in a faulty manner, and carries himself in a kind of confident, haughty, evasive way that annoys Raft.
Split into simpler sentences: This second man, Paulo da Costa Pereira, is a man of indeterminate origin. He carries himself in a kind of confident, haughty, evasive way that annoys Raft.