Vocabulary
Liar (n)
To lie (v)
lying (v, adj)
deception
lie detector
polygraph
white lie
flattery
BBC NEWS
Warm-up discussion
Do you consider yourself a good liar?
How many lies do you tell every day?
Which profession admits lying the most? teachers, doctors or politicians?
Listening
What is a motivated liar?
What are the physical reactions the lie-detectors claim to detect?
What is junk science?
What is a white lie?
According to Dan, which profession admits lying the most?