Crosses arms only during certain accountings. Twitching only in specific key areas. Scratching or touching various places only in specific areas. Out of order eye blinking. Fumbling with pens or other items during specific areas.
Most body language is rather subconious.
When they are not found throughout the statement and appear only in critical areas of verbal content, a red flag should go up. Look for it the next time you are in a book store. Another good manual along these lines is Never Say Lie . There are many good handwriting analysis experts in the country. Several investigative agencies even offer services for handwriting analysis for specific types of investigative tasks such as pre-employment screening.