How to cultivate the perception of 'Anatta'?

Out of the three marks of existance, '**dukkha**' or '**sufferring**' and '**annicca**' or '**impermenance**' are directly understood as a day-to-day experience as well as through the intellect. However '**anatta**' or '**no-self**' is neither a normal day-to-day experience nor can it be intellectually understood. I know that in the first Jhana, '**anatta**' is a direct experience, but for those who have not yet reached the state of Jhana how can one cultivate the perception of '**anatta**' such that it helps to move towards Jhana? How can one be mindful of '**anatta**' off the cushion?