He...boasted an unassuming mustache, which was perched atop his upper lip cautiously, as though it were slightly embarrassed to be there and would like to slide away and become a sideburn or something more fashionable.

He...boasted an unassuming mustache, which was perched atop his upper lip cautiously, as though it were slightly embarrassed to be there and would like to slide away and become a sideburn or something more fashionable.