yes i just wet some cotton wool and put it over the mole either all day or for a few hours, within 3-4 days you should notice a scab appearing ontop the mole. Keep up the treatment until the scab (and the mole) fall off. Im not sure if its necessary to keep applying the acv after the scab has formed but i did anyway.
How quickly this works depends on the size of the mole, and it must be a raised mole as i had no success with flat moles. You will be left with a dull red mark in replace of the mole which will fade back to normal skin colour in a few weeks.