Lying -- a Survey

Liars signal that they're lying. Some folks have suggested these clues:
- Liars change the subject quickly.
- Liars look up and to their right when they speak.
- Liars use fewer contractions.
- Liars will sometimes stare straight at you and employ a dead face.
- Liars never touch their chest or heart except self-consciously.
- Liars place objects between themselves and you during a conversation.