What's something that turns you on, but isn't necessarily sexual itself?
I, for example, am very turned on by contrasts. So noticeable height differences, size differences (individual body parts or the whole package), skin tone, shapes, etc.
I kinda wish my wife (who's very pale) were bi because I would love to see her have sex with a dark skinned woman that's a similar height and weight as her, or a short, petite woman (she's also tall for a woman).
I love people who love things I do as well. A couple examples from recent memory: I love black metal and I was wearing a hoodie from an obscure band and this guy recognized the logo. We had a long talk about music and that was definitely a huge turn on. I also really love when people geek out about stuff, and I met a guy who's a mechanical engineer and he was happy to talk about his job and all the things that go along with it.