Teens are so sensitive to judging, ... Even if you call girls at their school names because they're sexually active, or if you say that certain boys make decisions that are stupid, the teenager will wonder, 'What do you think about me? What will you say about me?' And what you never want to do is create a situation where the teenager won't feel comfortable coming to when you they need you.
It keeps the conversation going, ... You may learn something that you didn't know before. The parent doesn't always have to be the person at dinner table who knows everything. It's OK to allow the teenager to enlighten you about how things really are. They may, in fact, know more than their parents about the way things are in their life.