Interpersonal relationships

The hedgehog's dilemma, or sometimes the porcupine dilemma, is a metaphor about the challenges of human intimacy.

Social facilitation, or the audience effect, is the tendency for people to perform differently when in the presence of others than when alone.

Empathy is the capacity to understand or feel what another person is experiencing from within the other being's frame of reference, i.

A handshake is a short ritual in which two people grasp one of each other's like hands, in most cases accompanied by a brief up and down movement of the grasped hands.

Heterosexuality is romantic attraction, sexual attraction or sexual behavior between persons of the opposite sex or gender.

A role (also rôle or social role) is a set of connected behaviours, rights, obligations, beliefs, and norms as conceptualized by people in a social situation.

Sexual intercourse, or coitus or copulation, is principally the insertion and thrusting of the penis, usually when erect, into the vagina for sexual pleasure, reproduction, or both.

Sportsmanship is an aspiration or ethos that a sport or activity will be enjoyed for its own sake, with proper consideration for fairness, ethics, respect, and a sense of fellowship with one's competitors.

Attachment theory is a psychological model that attempts to describe the dynamics of long-term and short-term interpersonal relationships between humans.

Sympathy (from the Greek words syn "together" and pathos "feeling" which means "fellow-feeling") is the perception, understanding, and reaction to the distress or need of another life form.

In psychology, frustration is a common emotional response to opposition.

Social isolation refers to a self-imposed state of complete or near-complete lack of contact between an individual and society.

Haptic communication refers to the ways in which people and other animals communicate and interact via the sense of touch.

Public displays of affection are acts of physical intimacy in the view of others.

Affinity in terms of sociology, refers to "kinship of spirit", interest and other interpersonal commonalities.

("Sexual relationship" redirects here. For sexual relationships between non-human animals, see Mating system.) An intimate relationship is an interpersonal relationship that involves physical and/or emotional intimacy.

Limerence has been defined by one writer as "an involuntary interpersonal state that involves intrusive, obsessive, and compulsive thoughts, feelings, and behaviors that are contingent on perceived emotional reciprocation from the object of interest".

The confidant (/ˈkɒnfɪdænt/ or /ˌkɒnfɪˈdɑːnt/; feminine: confidante, same pronunciation) is a character in a story that a protagonist confides in and trusts.

Meet market or meat market, is an originally pejorative term referring to two related phenomena: * a location or activity in which people are viewed as commodities and * a business like a nightclub where people typically look for a casual sex partner.

Chibados (or quimbandas) are third-gender men who lived most often as women.

Attachment theory, originating in the work of John Bowlby, is a psychological, evolutionary and ethological theory that provides a descriptive and explanatory framework for understanding interpersonal relationships between human beings.

Mimpathy (German: Nachfühlen, literally "after experience") is a philosophical concept related to empathy and sympathy.

In a social context, trust has several connotations.

Social intelligence is the capability to effectively navigate and negotiate complex social relationships and environments.

Attachment in children is "a biological instinct in which proximity to an attachment figure is sought when the child senses or perceives threat or discomfort.

Helping behavior refers to voluntary actions intended to help the others, with reward regarded or disregarded.

Relational transgressions occur when people violate implicit or explicit relational rules.

Child-selling is the practice of selling children, usually by parents, close persons, or subsequent masters or custodians.

Homophily (i.e., "love of the same") is the tendency of individuals to associate and bond with similar others.

Hugs and kisses or xoxo is a term used for expressing sincerity, faith, love, or good friendship at the end of a written letter, email or SMS text message.

Emotionally focused therapy (EFT), also known as emotion-focused therapy and process-experiential therapy, is a usually short-term (8–20 sessions) structured psychotherapy approach to working with individuals, couples, or families.

The term maternal deprivation is a catch-phrase summarising the early work of psychiatrist and psychoanalyst, John Bowlby on the effects of separating infants and young children from their mother (or mother substitute) although the effect of loss of the mother on the developing child had been considered earlier by Freud and other theorists.

A hot-cold empathy gap is a cognitive bias in which people underestimate the influences of on their own attitudes, preferences, and behaviors.

Motsoalle is the term for socially acceptable, long-term relationships between Basotho women in Lesotho.

A mudoko dako (also known as mudoko daka or dano mulokere) is an effeminate male who is considered by Langi society to be a different gender, though were mostly treated as woman among the Langi in Uganda.