The method includes producing first identification data used as reference; performing subject recognition on acquired images of subjects to obtain recognition images, producing second identification data, and matching the first identification data with the second identification data; tallying the acquired images based on matching results for each subject and by shooting tendency factor; judging whether a number of the acquired images or a proportion of the number of the acquired images of the subjects in respect of each of the shooting tendency factors is within a given range from tally results of the acquired images; and providing shooting assist so that the number of the acquired images or the proportion of the number of the acquired images in respect of the shooting tendency factor judged to be outside the given range is placed within the given range.