I told them that I used to play magic and that I have played D&D. I received several questions about M:TG (e.g. favorite colors, how I have played it, when I played it last, how I prefer to play it, how do i think it is doing, and would i recommend it). Then, l received questions about D&D (e.g. what editions I have played, which edition I started with, favorite classes, favorite races, if I DM and when when did I start, how likely I am to recommend 5e and, (based on my answer) why I am likely not to recommend it (despite liking much of the free basic rules), etc.)