Fingernails

Something my friend brought up really got me thinking: Why do (on average) men look at their fingernails with their fingers curled inwards, whilst women look at the same with their fingers outstretched and at arm's length. While I was experimenting with it, I found that it was indeed counter-intuitive to do that at arm's length when trying to see what was wrong with my nail's tips.

Then it struck me: the women who were looking at arm's length were examining the backs of their nails, whilst the men were examining the tips. It made perfect sense, considering those who cared about the backs of their nails were more likely to have painted them in the first place. The edges of a manicure are often well done enough that it's really the painted bits that really count. As for men...well...most won't even be painting.