My wall is currently covered in a mind-map of all of my interests. It was a somewhat neurotic thing to do, but I realized that despite having many interests I basically switch between the same few things, and that if I tried to just scribble it all out I could probably do it. So I did, and I like the decoration. It's nice just knowing it's all accounted for. (The center nodes are "career," "spending time well," "fitness," and "spiritual/societal", for the record.)
Officially I'm a hacker at a start-up but the other things I listed make up my identity more. In other words, no, I will not show up to your meetup just because you offered free pizza. I'm at a young company and we don't have a lot of experience between us, which means the need for technical growth is extraordinary. That's the one thing I like about the hacker thing, you're forced to constantly, constantly be learning new things, to the extent that you must also manage very carefully how you learn new things, which is a much more novel challenge to me than merely learning things. But I'd still probably rather be writing for NY or Aeon Mag or something.
Also I like having stuff to do. Into classical music and take advantage of working near Carnegie Hall, also find lots of random cheap off-off Broadway shows where the average age in the audience is like twice mine (why don't young people like random off-off Broadway more!?) Will likely try dragging you to such things.