This research focused on the physical distance between male and female individuals assumed to have romantic feelings but are not yet considered as couples. While talking with just two people, one subject was asked to adjust the position to the shortest distance with the partner in a standing position. As a result of the experiment, it was found that the distance to the favorite opposite sex was the closest when men were side by side with dark lighting and women were facing each other with dark lighting. Both men and women also evaluated that they were the easiest to talk when it was dark and side by side. Previous studies have shown that couples approach side by side, and this tendency was confirmed even in the early stages of romance.