

References
See also here
e.g.
106) Renninger, LA., Wade.T J. Grammer, K. (2004). Getting that Female Glance: Patterns and consequences of Male nonverbal Behavior in courtship Contexts. Evolution and Human Behavior 25, 416-431.
102. Grammer, K. (2004): Is there empirical evidence for the dynamic nature of communication systems: the role of synchronisation and inferential communication. Brain and Behavioral Sciences , 25 (5) pp. 625.
94. Grammer, K., Fink, B., Møller, A.P., & Thornhill, R. (2003) Darwinian Aesthetics: Sexual Selection and the Biology of Beauty. Biological Reviews, 78, 03 pp 385-407
51.Grammer, K., Kruck, K., Magnusson, M.S. (1998): The Courtship Dance: Patterns of Nonverbal Synchronization in Opposite-Sex Encounters. J. Nonverbal Behavior 22(1) pp.3-29.
Givens, David B. (1978A). "The Nonverbal Basis of Attraction: Flirtation, Courtship, and Seduction." In Psychiatry (Vol. 41), pp. 346-359. [Selected among the best in the world's literature on human behavior and psychology by the Max-Planck Center for Human Ethology, in The Bibliography of Human Behavior, p. 201, Hiram Caton (Ed.), Greenwood Press, London, 1993.]
Givens, David B. (2005). Love Signals: A Practical Field Guide to the Body Language of Courtship, St. Martin's Press, New York. (Publishing history: translated into Bulgarian, Czech, German, Japanese, Korean, Romanian, Russian, Spanish, and Swedish.) Paperback edition: 2005, St. Martin's Griffin, New York.