stone tortoise face

apathy beaten blank boredom calm cement concrete deadpan dispassionate enigma expressionless faded figure flaking image impassive indifference inscrutable likeness mysterious mystery nonchalant ornament pensive perplex placid playground pokerfaced puzzling quizzical representation rough serene shy shyness simulacrum sphinxlike statue straightfaced terrapin thinking timid tortoise turtle unknowable watching weather weathered worn