Noticing body language:
Your mission is to norm at least three completely different "types" of people. Look for at least one of each of the following types: shy, powerful/confident, and arrogant/aggressive.
In a notebook, draw a stick figure of each of the people you are norming. Now use a Head/Shoulders/Knees/Toes model to scan each. Write a one- or two-word observation next to the corresponding areas of the body (such as, "head back, nose slightly up, shoulders slumped forward, hip tilted to the left side, hands on hips, feet two feet apart"). Allow yourself to write with plenty of detail, but limit yourself to two to ten minute of observation for each person.
Once you've done this exercise on paper today, continue throughout the week without writing it down. Practice this exercise often enough and you'll start doing it automatically-which is the goal.