You can become the kind of adult who goes to costume parties cleverly attired as a zombie or a politician and stands around drinking spiked punch, or you can be the kind that sets out spooky and/or humorous yard displays and hands out candy to the kids. There's also a third set of options if you're like me and live in an apartment building that doesn't get pint-sized trick-or-treaters or offer any lawn decoration opportunities--in which case, you can either do nothing, watch a scary movie, set out a themed candle or candy dish, or bake cookies in Halloween shapes. Since your actual responsibilities are zilch, any degree of participation is up to you.
I usually just think about how much I enjoyed Halloween as a kid, feel a bit nostalgic, and eat some cookies (I used to set out a "pumpkin" candle holder, but I think it's in the back of the cabinet somewhere). I'm guessing that most people with kids at home re-live their childhood memories by making Halloween fun for their own children, and that sounds to me like a reasonable way to approach things.
Many people will disagree with me on this, but I'm not really a fan of adults dressing up as ghouls and things on Halloween. One of the things I remember about childhood Halloweens was that the fun was anchored in a sense of safety. You were wandering around outside after dark in a way you never would normally, dressed as someone you definitely were not, tripping over your hem and wearing a mask, and there was certainly something at large, a special Halloween spookiness. Then you'd knock on someone's door and a solid and ordinary-looking adult that you'd seen dozens of times would answer with a bag of Butterfingers or boxes of Milk Duds, reminding you that no matter how thin the membrane between ordinary reality and the otherworld on All Hallows Eve, you could reach out and touch normal reality at any time. When there are too many big people running around in masks, it starts to seem more like real pandemonium.
I have a prejudice against masks. I was thinking about this the other night and how much in the minority I may be on the issue when I happened to read, in a memoir, about someone else's distaste for masks in the context of her visit to Venice. I think my dislike stems from the knowledge that the human face itself is a mask par excellence, requiring much skill and patience to read. If the human countenance is already a disguise (and I admit that it may sometimes be a protective disguise--a necessary thing), adding additional layers of covering seems to complicate reality a bit too much. It's a little like Inception, the movie in which dream architects find a way to enter into and function in alternative layers of consciousness, making base-level reality difficult to ascertain after a while. Which face is really yours, this one or that one?
I'm not against costumes, though. Who doesn't like to dress up? My idea of fun would be to separate the adult festivities from the children's on All Hallows, so that the adults were there to supervise the kids on Halloween and then had their own parties on All Saint's or All Soul's day. I could see saying something like, "OK, the theme is the Eighteenth Century." Or possibly, "Come as your favorite character from either Shakespeare or Mark Twain. Interpret this any way you like--only no masks." I think the fun of seeing people caught in an out-of-context sartorial challenge would be much greater than trying to figure out who's behind what mask.
You'd always have to keep a few straw hats or jerkins on hand for people who showed up without one, and you'd have the burden of trying to figure out what kind of food to serve to people dressed up as Mozart or Martha Washington. But it would be worth it, wouldn't it?
