1. Look directly into his eyes. Don’t look to the left.
2. Don’t touch your face, don’t scratch behind your ears. Just keep lying.
3. Start faking emotions before saying lie. Start smiling before saying “I love it”, etc.
4. Learn to fake your smile well - with your eyes and the whole face. If you don’t know this part well - avoid smiling.
5. Don’t turn your body or your face away. Stand still, look straight.
6. Try not to place objects between you and the other guy.
7. Use contractions, say “I didn’t do it” vs. “I did not do it”.
8. Don’t get too far with details, it’s not common for the truth.
9. Don’t try to change the subject! Don’t let the other one to change the subject - it may be a test. Stay on topic. Keep lying.
10. Don’t joke more than you normally do.

Just a joke, inversion on a blog post in sellsius blog.