The mien of the person practicing engaged detachment, or passionate indifference, should be neither serious nor smirking - for these indicate a feeling of self-superiority which true ironic detachment precludes. The light-hearted unconcern of the insouciant [a French word derived from the Latin for "not agitated"] person ought not to be confused with cynicism or superciliousness. See: CARELESS, DETACHED, INDIFFERENT, NONCHALANT, WAITING FOR GODOT.