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Interpersonal interaction is the effect that two or more people may have upon one another. In social psychology the study of this area includes looking at a wide range of phenomena that occur in intimate relationships, broader interpersonal relationships and wider still social relationships:

• Assistance (social behavior)
• Boundaries (psychological)
• Charitable behavior
• Collective behavior
• Conflict
• Cooperation
• Employee interaction
• Friendship
• Group participation
• Group performance
• Interpersonal attraction
• Interpersonal communication
• Interpersonal compatability
• Interpersonal influences
• Male female relations
• Mentor
• Participation
• Peer relations
• Persecution
• Retaliation
• Rivalry
• Social dating
• Social networks
• Stranger reactions

The interactions may result in :

• Affection
• Codependency
• Enactments
• Intimacy
• Mirroring
• Relationship satisfaction

See also

• Social cognition