I think that it is important that a person has a general interest in learning things. A way to decide if they do is to ask them a general question about how something common works. Examples are:
- Why is it warmer in the summer?
- What are the cycles of a 4 stoke engine?
- How does a duckbill platypus bear its young?
You need to be careful not to slip in programmer or math questions.
-- gam3
A picture is worth a thousand words, but takes 200K.