No Unsolicited Advice
This is an underlying theme in most of our other tips, but it's important enough that we'll make it its own item. Of course, there are exceptions to the rule. In a major life crisis or life-or-death situation, by all means, step in with guidance. But on an everyday basis, try your best to keep quiet. If you have a solid relationship with your child, she'll ask for your advice; she may not take your advice, but she'll appreciate what you have to say.