Movies, concerts, theater, comedy shows, restaurants, parties, you name it, I've gone alone, not always, but consistently. If no one I know shares my interest or is available to join me why should I let that stop me? Sure, friends make nice security blankets in public, but those of us who are uncompromising in the pursuit of our interests will not let that stop us. I just pretend to be confident. Once you go to certain types of functions consistently, you become friends with the other die hard fans (likely aspies too).