Before marriage, love or even just meeting, there is attraction, the unexpected force that unites two people. Physical attractiveness is the set of physical traits perceived and considered aesthetically pleasing or beautiful. There are multiple factors that influence a person to be attracted to another. These factors can vary across many cultures, cultural and social aspects, and individual subjective preferences (Gangestad & Scyheyd, 2005). An individual's perceived attractiveness can have a significant effect on how he or she is judged in terms of work or social opportunities, friendships, sexual behavior, and marriage (Townsend & Levy, 1990). The media and general public portray a woman's sexuality as a mystery, but is it? Scientific research has revealed several factors that influence heterosexual women's attraction to men. Researchers have shown that women are strongly attracted to men who are agreeable (Jensen-Campbell, Graziano, & West, 1995), intelligent (Hatfield & Sprecher, 1995), funny (Bressler, Martin, & Balshine, 2006), generous (Sprecher & Regan, 2002), high income level and social status are also key factors in mate selection (Townsend & Levy, 1990). Most women are attracted to symmetrical faces with masculine qualities such as a prominent chin and cheekbones, as well as a symmetrical, muscular body, with shoulders wider than hips (Gangestad & Scyheyd, 2005). Women also prefer a man who is slightly taller than average with a deep voice (Buss, 2008). The combination of such traits is linked to good health and high testosterone levels, which increase the likelihood of reproduction (Gangestad & Scheyd, 2005). This research reveals that a woman's se...... middle of paper ...... Compared to fake smiles, an individual's cheek lifts are more activated and cause the orbicularis oculi muscles to contract, showing crow's feet wrinkles at the corners of the mouth. eyes (Hager & Ekman, 1985). There is evidence that people unconsciously check for crow's feet when determining whether a smile is genuine (Williams, Senior, David, Loughland, & Gordon, 2001). Further studies revealed that fake smiles gain less trust during first impressions than genuine smiles (Averbeck & Duchaine, 2009). The purpose of our experiment is to explore the effects of the type of smile: real or fake, and the color of the background: red or white, on an individual's perceived attraction based on sexual preferences. Based on previous research and experiments, we hypothesize that models with genuine smiles and red backgrounds will be perceived and rated as more attractive.