While looking at the lines on your own hand can help you determine your own future, checking out the fingers on a man's hand is a good way to determine their preferences in a romantic partner. Apparently all of their secret desires are easily discovered by looking at their ring finger.
Apparently, the length of their fingers determines their preferences. Here's what you need to check. Have a man hold up his hand and compare his ring finger to the index finger.
If their ring finger is as long as their index finger it means that while their mother was pregnant there was an extra burst of testosterone in the womb. This apparently causes the longer fingers, but what researchers found is that the finger length actually changes who they are more likely to be attracted to.