I believe its the eyes which actually speak more than the lips...Many times I find people speaking something but when I look into their eyes they don't seem to support wat they speak....I strongly believe that eyes can never lie...or rather a person needs to be an expert to lie thro his eyes...Lying thro lips is something almost everybody can do...I learnt this lesson the hard way and have made it point to have an eye contact whenever I talk to someone...It really helps..