All men and women have their own individual switches you know...
The thing is, my wife has learnt my buttons and switches over the years and has the seduction of me down to an art. For a time though she had forgotten that even after marriage seduction is imperative for a healthy sex life.
After she got a bit too comfortable she began "initiating" skipping the foreplay/romance/tease etc. And if she didn't get it, she became argumentative, demanding, forceful, and outright spoiled/selfish. Yup, that turned me off straight away. But thankfully, her style is much better nowadays.
First, find out what he physically enjoys, what he loves about your body. My wife for example, knows how much I love her legs and how she carries herself, so she makes sure to keep her legs smooth and carries herself very seductively, but that's just the prep. Next step is catching his eye - and this takes time and patience. How you walk, how you sit, how you lie, how you look at him - all that builds arousal.
Next step is the flirting, and some guys like myself, we love a good tease and a challenge. Be playful, be fun, be cute, don't take it so seriously. With your body, show it off, only to hide it again (that drives us men NUTS!), flirt with him, taunt him, challenge him.
All those combined, with the right situation and the right words, means = boner. Keep teasing it and it'll start coming for you! lol