Mirror
In mirroring, all products on a store shelf are pushed forward as much as possible so that the shelves appear fully filled and a beautiful mirror is created. Mirroring is performed by shelf fillers, who in addition to filling the shelves must ensure that products with the lowest expiration date are placed at the front (first in, first out).
Within communication, the concept of mirroring is a form of nonverbal communication. This involves imitating the interlocutor's movements, whether or not in mirror image. This can happen both consciously and unconsciously. By mirroring you can show another person that you are interested and are following them. Of course this should be done inconspicuously, otherwise the effect will be rather counterproductive.