I've been a freelance CFI for two decades. However, I am busy with my own profession, so this endeavor is just to diversify my activities and keep me engaged in aviation. It is not for making money or to earn hours. I tend to be meticulous and technical, and I spend a lot of time preparing for lessons. I enjoy flying with students who challenge me intellectually, and ask me difficult questions. My biggest frustration has been students who show up unprepared - those who had not given the flight much thought since the last time we flew. My question is, how do I find these students before I start flying with them? I know it is not uncommon for students to interview a CFI, but how common is it for a CFI to interview a student? I don't want to come across as arrogant by making such a request. I sort of see it like a first date to see if there is any chemistry before making a commitment.