I recently learned this from a book and would like to share.
The idea is the following: when you ask someone a direct yes-or-no question and they begin their answer with the “well,” there is a high probability of deception. It indicates that the person answering the question is about to give you an answer that they know you are not expecting.
Dad: Did you finish your homework?
Dad: Go to your room and finish your homework.
Daughter: How did you know I didn’t do my hw ?
Dad: I’m a dad. I know these things. - : )
So when I become suspicious during conversation, I give some time to person to finish her part, then try to come up with yes-or-no question and simply check whether she answers with "well," or similar construction. And try to pay attention to body language cues at the same time.
I have moderate success with it so far.
Did anyone try this before ? What do you think ?