Questions to ask to a panel of people that will be sequenced
23andMe is a company that provides sequencing. Before they sequence your genome, they ask you to fill in a couple of surveys, one of which is about your physical features. Here is a list of some of the questions they ask: 


  
  How much hair do you have on your upper/lower back?
  When you walk, in what direction do your feet naturally face?
  Do you have a line or indentation (dimple) in the middle of your chin?
  Excluding any hair loss, does your natural hairline have a widow's peak (a V-shaped peak of hair at the front of the hairline)?
  Can you flip your tongue over so that the underside is on top?
  Can you lift one eyebrow while keeping the other eyebrow in place?
  Which is longer, your big toe or the toe next to your big toe?
  On your left hand, which finger is longer, your index finger or your ring finger?
  What is your shoe size in U.S. shoe sizes?
  How would you describe the arches of your feet?
  Can you bend down and place your entire palms on the floor while keeping your legs straight (see above image)?
  Which image best matches the natural shape of your face (with your hair pulled back)?
  ...
  


That's a small list of phenotype questions you can ask ;-)