Factors Enhancing Interpersonal Attraction

In social psychology, interpersonal attraction can be influenced by various factors such as proximity, similarity, and physical attractiveness. Proximity refers to how physically close individuals are to each other and is often considered one of the strongest predictors of attraction. Similarly, similarity encompasses shared values, beliefs, and interests, while physical attractiveness plays a significant role in initial attraction. Which of the following factors is most likely to enhance interpersonal attraction according to the principles of social psychology?