Originally Posted by
Tanya934
In addition, i am seeing an old school friend for the 1st time in 14 years. Do i use "du" or "sie" as a form of address now that we are both in our 40's?
You would always use "du" with someone you went to school with.
In fact one could almost say that the rule is "once du - always du"... with one notable exception, which is the non-reciprocal "du" from an adult to a child.