According to Osho, during discourse your 'doing' drops and meditation simply happens: his voice creates an atmosphere where awareness arises, cleansing you of accumulated inner rubbish. Recognize this happening versus doing, then let it detach from his presence - first by listening to waves, birds, or wind, and finally by silent being. Do not misuse it as mere cleanup; stay alert so nothing new accumulates.
With Osho, meditation happens by itself and cleans your inner clutter; learn to let it happen anywhere and stop gathering new mental trash.