The Four Principles of Attraction According to H. T. Reis

Many times, we find it difficult to identify what makes another person attractive to us. We may even make the wrong attribution. To understand this, H.T. Reis defined four principles of attraction, which help explain the mysterious magnetism two human beings can feel.
The Four Principles of Attraction According to H. T. Reis

Last update: 08 June, 2020

According to psychologist and professor H. T. Reis, many studies and literature make it possible to establish four principles of attraction among people. These principles are similarity, proximity, reciprocity, and stress.

The definition of these four principles of attraction is based on a study focused on interpersonal relationships.

Each of the four principles of attraction talks about a decisive factor when it comes to identifying another individual as attractive or unattractive. All of them show that the mind of the person putting this label exerts more influence on this process than the actual characteristics of the other person.

The four principles of attraction

1. The principle of similarity

This principle indicates that people tend to be attracted to those who resemble them. This contradicts the ever-so-popular idea that opposites attract. Many people believe in it. However, in reality, it seems that people tend to like others who share their same interests, concerns or motivations.

This principle is based on Donn-Byrne’s work. He formulated the so-called law of attraction in 1971. This law argues that the greater the number of similar characteristics, the greater the attraction between two people will be.

Similarity is one of the principles of attraction for three reasons:

  • Those who resemble us are in a greater position to validate what we are and think, which brings us satisfaction.
  • Similarities reaffirm our interests and tastes. The more people we see sharing our fascinations, the more we think they’re valid.
  • Similarity facilitates the process of sharing our environment with others without conflicts or sacrifices. If one person likes theater and the other likes going on long walks, they’ll both end up doing each activity separately or sacrificing themselves by participating in activities they don’t enjoy to please the other. If their tastes are similar, however, this sacrifice will be nonexistent and the individuals will spend more quality time together.
A man and a woman looking at each other in the eyes.

2. Proximity

The principle of proximity establishes that we’re more likely to build a friendship or a romantic relationship with the people we’re close to. Sharing the same environment (real or virtual) not only facilitates opportunities for interaction but tends to increase mutual sympathy between people.

In an experiment, researchers presented photographs of unknown people to a group of volunteers. Then, they repeated this step twice. The first time, they showed photographs of strangers. The second time, they presented some of the photographs they had already shown in the first batch. At the end of the experiment, the volunteers said that the strangers they saw twice seemed nicer than the rest.

Nevertheless, if the contact is extremely continuous or too long, the attraction can become unfavorable. The same happens when there’s an initial feeling of hatred but the proximity is maintained despite it.

3. The principle of reciprocity

Another one of the principles of attraction is reciprocity. This indicates that we tend to be more attracted to those we perceive that approve of us. In other words, we’re more sympathetic to those we feel are sympathetic toward us.

This is because feeling accepted and approved by others brings a feeling of greater security, confidence, and gratification. Being accepted by others fills us up with positive thoughts about ourselves. Therefore, we’re attracted to the root of such feelings.

H.T. Reis stated that the principle of reciprocity exerted greater influence than the principle of similarity. In short, we become attracted to people who accept us and treat us with kindness even if we don’t have similar interests.

A couple talking about the principles of attraction while drinking coffee.

4. The principle of stress and anxiety

This is the most paradoxical principle of attraction. According to it, people tend to feel more attracted to us when we’re in circumstances that produce anxiety and stress. For example, if a shark appears all of a sudden while sailing in the ocean, the captain of the ship may find us attractive. If we happen to share a parachute jump with someone, we’ll probably end up liking them more than before.

This explains why we seek more social contact under conditions in which we feel frightened or threatened. Other people’s company makes us feel safe. As a consequence, we end up establishing a positive bond with them.

To conclude, there’s something we must keep in mind. All these principles speak about attraction but not of affection or love. This means that these factors influence some kind of initial harmony with other people but don’t determine the quality or depth of a relationship.


All cited sources were thoroughly reviewed by our team to ensure their quality, reliability, currency, and validity. The bibliography of this article was considered reliable and of academic or scientific accuracy.


  • Simbrón, H. P. (2012). La atracción en la elección de pareja. Revista científica de Ciencias de la Salud, 5(1), 55-60.

This text is provided for informational purposes only and does not replace consultation with a professional. If in doubt, consult your specialist.