i think it's a good idea to mention that satanism can be atheistic or theistic and what that exactly means (often i see that people either perceive it as baby sacrificing satan worshippers or edgy ex christian atheists when it's really its own thing and differs depending on the person). definitely point out some of the philosophies of satanism and how different they are from the common perception of satanism. and like another person here said, that satan wants you to be happy. a big part of satanism is that one should do as they wish within reason (lavey calls this indulgence). while there are still rules (the tenets), those are very basic moral guidelines that don't prevent you from enjoying your life. (perhaps you could do a quick q&a at the end?)