We used to do this Check-Up at the beginning of every class session for one of my classes in my senior year of high school.
The rules are: 1) Describe with one word how you feel right now. 2) You cannot repeat a word that someone else has said today.
By having to find one word that as perfectly as possible describes how you truly feel you are forced to look within yourself and really get in touch with your inner self. If you do this with people in your physical vicinity, you will gain an understanding of the general mood of them and better be able to tailor your behavior and words to their current status. Also, it is a good way to move beyond the generic, non-descriptive, uninteresting "good" that so many people respond.
People have different senses of humor, but you may want to look for Nick Thume or Hamish and Andy on Andy on YouTube or else on Jay Leno's show's site. You can also find Jay Leno's trick photo booth on YouTube.