How do I respond when I don't know an answer to a question? That's a great question. Actually, there's many times where I don't know the answer. My best response to my clients would be, I will look into that and get back to you. That would be the best way, not to tell them that I don't know what I'm doing or not that I don't know the answer, but to tell them, let me look into it a little bit further and I will get back to you at a later time.