Put your foot in your mouth ( say something silly )Hit the book:

　　Marvel at

　　Reveal

　　Illusion

　　Social bond

　　Tactile

　　Adulthood

　　Attachment

　　Cognition

　　Neurophysiological

　　Epigenetic

　　Have you ever touched a loved one's arm and marvelled at the softness of his or her skin? Turns out it's probably all in your head, a new study shows.

　　Researchers from the University College London found that people rated others' skin as softer than theirs, regardless of whether it actually was.