bourne held the ak-47 against his right leg , concealing it as much as possible as he rose to his feet , his left hand skimming the top of the low hedgerow -- a gardener , perhaps , surveying an anticipated assignment , or an indolent stroller aimlessly touching the roadside shrubbery , nothing remotely threatening , just a sign of the commonplace ; to the casual observer , he might have been walking down that road for several minutes without being noticed .