My "hobby" (I guess you could call it that) is being a docent at the local art museum.
I take field trips (groups of school children, usually) around, show them the art, and ask them questions about when it is that they see, how they interpret art, what they thought the artist might have been thinking.
I usually follow it up with other questions. Why did the artist choose to emphasize some things and leave out others? What makes "good" art? Things like that. I can deliver long lectures on art, but I prefer the children be the ones doing the talking. I want to hear what they think.
We also get other tour groups ... everything from pre-schools to retirement homes. When I don't have a tour scheduled, I like to simply wander the halls and make myself available to answer any questions the casual visitors might have. I also volunteer in the gift shop.
I do keep my "sexual" side a secret at the museum. If they knew half of what I like to do, they'd probably fire me and bar me from being around children, which makes no sense as I have no sexual interest in kids whatsoever.
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