But Like They Might Have Musical Instruments And Fav Genres Assigned As Part Of Their Personality - Tumblr Posts

Are you a "I know their allergies, favorite holidays, favorite songs, birthday, etc. No none of this is in what said OC is in nor is it relevant to know" OC creator, or are you a "Yeah I mean... They probably have a birthday maybe idk..." OC creator ? Or a mix of both ?