This question may seem paradoxical: why would you waste your time on girls that don't sexually interest you?

Well, for a few reasons. They may be your co-worker/classmate, they may be a mutual friend, or they may be beneficial to your career. My question is, how do you interact with these girls?

For me, when I see something I want, I take it (within reason). Because I'm driven by this, I talk to any girl I find attractive. But, on the other hand, I don't talk to girls that don't interest me... I just don't know how.

Most of the conversations with girls you're interested in would revolve around flirting, jokes, escalation, kino, and just having a fun time (for me). But if you cut out all the sexual tension in a male/female conversation, all you're left with is vapid, forced small talk. And I despise and suck at small talk.

So to all the seduction senseis out there, what do you do with girls that you "must" talk to, but who you're not interested in the sexual way? How do you maintain the frame of a man to a woman, without the sexual sub-communications? How do you engage in small talk?