First thing I thought when I saw the title...
was "it depends on the audience". So I was glad to see an "IF it's family and friends" because that's exactly what I was thinking. It's also okay if it's a quick tip given to a colleague, in my opinion, depending on the context, frequency, and quality of the question(s) asked. In other words, frequent high-quality questions might suggest that a formal consultation (i.e., paid services) is in order.