Note from previous post.
When a person is lying they may however look you in the eye, This could be a rehearsed lie which they have thought over, and probably comfortable at telling you.
However, there are small signs this person gives off unconsciously. These signs may be quick or irregular blinking over even staring at you without any blinking what so ever. these signs are not what a regular person does when they are telling the truth.
Look out for these signs in everyday life and try and catch somebody off guard. Maybe ask questions about what they have just said and prove them wrong. ask details that they wouldn’t have thought through or not considered. This will be a blow to them and they will start to get nervous or change the subject very quickly.