tips of detecting deception....Althou please note....clusters are usually required. And hold more credit if clusters are observed, but still doesn't actually prove or mean lying.
When you ask a question.....replying too quickly, (indicates they have already thought the answer and rehersed what they want to say)
Also not answering the question first when u ask.(deflecting attention, or not giving straight answer)
Nerves in the face make people itch certain places on their face.....blood circulation in the face increases when lying.
So ears, nose, top lip.
If they take a step backwards that can indicate wanted to back away and not feeling confident in what they said
ALso facial expressions, But that would take far too long to explain all the different micro expressions
erm..... indications of shame can also maybe indicate a lie, so looking down when answering questions would indicate that the person is feeling shame at what they have in their mind
if u need more i can try and think of some