snip
Physical expression will be limited and stiff, with few arm and hand movements. Hand, arm and leg movement are toward their own body the liar takes up less space.
...
Timing and duration of emotional gestures and emotions are off a normal pace. The display of emotion is delayed, stays longer it would naturally, then stops suddenly.
...
A guilty person gets defensive. An innocent person will often go on the offensive.
A liar is uncomfortable facing his questioner/accuser and may turn his head or body away.
...
Liars sometimes avoid "lying" by not making direct statements. They imply answers instead of denying something directly.
more
http://www.blifaloo.com/info/lies.phpSound familiar?