When people interact with each other, they are sending verbal or nonverbal or nonverbal messages.
Scientist found that nonverbal communication is actually more important than verbal communication.
Something in the nonverbal behavior of the speaker may influence the partner, such as pauses in speech, a bit of a monotone, or a little gesture; these little behaviors can lead us to find a perfect stranger or someone we just met as a pleasant or unpleasant person.
Nonverbal communication between partners intimate relationship is even more important.
Below you will find a few of articles on interpesonal phenomenas.

. Authors: Chartrand TL, Bargh JA
Review: Journ. of Personal. and Social Psychol., 1999 Jun;76(6):893-910
Title: The chameleon effect: the perception-behavior link and social interaction.

. Author: Bonac VA
Review: Electronic Journ. of Communicative Psychoanalysis, 1998, aug.
Title: Perception or Fantasy? A New Clinical Theory of Transference

. Authors: Berk MS, Andersen SM
Review: Journ. of Personal. and Social Psychol., 2000 Oct;79(4):546-62
Title: The impact of past relationships on interpersonal behavior: behavioral confirmation in the social-cognitive process of transference.

. Authors: Skowronski JJ, Carlston DE, Mae L, Crawford MT
Review: Journ. of Personal. and Social Psychol., 1998 Apr;74(4):837-48
Title: Spontaneous trait transference: communicators taken on the qualities they describe in others.

. Authors: Andersen SM, Reznik I, Manzella LM
Review: Journ. of Personal. and Social Psychol., 1996 Dec;71(6):1108-29
Title: Eliciting facial affect, motivation, and expectancies in transference: significant-other representations in social relations.

. Authors: Hinkley K, Andersen SM
Review: Journ. of Personal. and Social Psychol., 1996 Dec;71(6):1279-95
Title: The working self-concept in transference: significant-other activation and self change.

. Authors: Andersen SM, Glassman NS, Chen S, Cole SW
Review: Journ. of Personal. and Social Psychol., 1995 Jul;69(1):41-57
Title: Transference in social perception: the role of chronic accessibility in significant-other representations.

. Authors: Caspi A, Herbener ES, Ozer DJ
Review: Journ. of Personal. and Social Psychol., 1992 Feb;62(2):281-91
Title: Shared experiences and the similarity of personalities: a longitudinal study of married couples.

. Author: Paunonen SV
Review: Journ. of Personal. and Social Psychol.,1991 Sep;61(3):471-7
Title: On the accuracy of ratings of Personal. by strangers.

. Author: Lobel TE
Review: Journ. of Personal. and Social Psychol., 1994 Feb;66(2):379-85
Title: Sex typing and the social perception of gender stereotypic and nonstereotypic behavior: the uniqueness of feminine males.

. Authors: Levenson RW, Ruef AM
Review: Journ. of Personal. and Social Psychol., 1992 Dec;63(6):969-77
Title: Empathy: a physiological substrate.

. Authors: Hokanson JE, Butler AC
Review: Journ. of Personal. and Social Psychol., 1992 Feb;62(2):273-80
Title: Cluster analysis of depressed college students’ social behaviors.

. Author: Unspecified
Source: American Psychological Association
Title:Nuances of Interpersonal Relationships Influence Blood Pressure

hAuthor: Nakamura M, Buck R, Kenny DA
Review: Journ. of Personal. and Social Psychol., 1990 Nov; 59(5):1032-9
Title: Relative contributions of expressive behavior and contextual information to the judgment of the emotional state of another

. Author: Andersen SM, Cole SW
Review: Journ. of Personal. and Social Psychol,, 1990 Sep; 59(3):384-99
Title: “Do I know you?” The role of significant others in general social perception

. Authors: Ohman A, Lundqvist D, Esteves F.
Review: Journ. of Personal. and Social Psychol., 2001 Mar; 80(3):381-96
Title: The face in the crowd revisited: a threat advantage with schematic stimuli

. Authors: Yasuko Omori and Yo Miyata
Review: Social Behavior and Personal., 2001, 29 (2), pp. 159-168
Title: Estimates of Impressions Based on Frequency of Blinking

. Authors: Kumi Hirokawa, Fumio Yamada, Itsuko Dohi, and Yo Miyata
Review: Social Behavior and Personal., 2001, 29 (4), pp. 375-384
Title: Effect of Gender-Types on Interpersonal Stress Measured by Blink Rate and questionnaires: Focusing on Stereotypically Sex-Typed and Androgynous Types

. Authors: Anneke Vrugt and Mara Luyerink
Review: Social Behavior and Personal., 2000, 28 (1), pp. 91-104
Title: The Contribution of Bodily Posture to Gender Stereotypical Impressions

. Authors: C. Senior, J. Barnes et others
Review: Social Behavior and Personal., 1999, 27 (4), pp. 331-338
Title: Attribution of Social Dominance and Maleness to Schematic Faces

. Authors: Felix Neto & John E. Williams
Review: Social Behavior and Personal., 1997, 25 (2), pp. 115-122
Title: Color Bias in Children Revisited: Findings from Portugal

. Author: Thomas E. Joiner Jr
Review: Social Behavior and Personal., 1994, 22 (2), pp. 195-200
Title: The Interplay of Similarity and Self Verification in Relationship Formation