Peacocking

Carrying a guitar increases your chance of getting a date by a third

http://www.dailymail.co.uk/sciencetech/article-2320752/Music-really-food-love-French-scientists-carrying-guitar-increases-chance-getting-date-third.html

How wearing high heels affects judgements of female attractiveness 

Participants judged the females in the heels condition as significantly more attractive (with a large effect size) than the females in the flat shoe condition. Biomechanical analyses revealed that wearing high heels led to increased femininity of gait including reduced stride length and increased rotation and tilt of the hips. We conclude that high heels exaggerate sex specific aspects of female gait and women walking in high heels could be regarded as a supernormal stimulus.

http://www.ehbonline.org/article/S1090-5138(12)00122-5/abstract