I observed, however, that one of them held somewhat aloof, and though he seemed desirous not to spoil the hilarity of his shipmates by his own sober face, yet upon the whole he refrained from making as much noise as the rest.
There are no more uses of "aloof" in the book.
Show samples from other sources
People who don’t know her, think she is aloof from the rest of the team, but she is just focused on the game.
She focuses on her work and is aloof from office politics.