How to Read Micro-Expressions in a Micro-Courses

The ideal eye contact is 60 to 70%. People usually think, oh, I have to make a really good eye contact and that means 100% of the time. The ideal way is actually to read micro-expressions because when they're speaking, you're usually looking at their face to read them. So it's looking for incongruencies. And the last section is just responding authentically to the emotions you see. Can you tell pretty much right away if someone's lying or honest?