Well, if I'm going on a date, I damn sure expect sex. Also I expect recreational fun (could take varying forms), a good meal, and probably a mocha, all paid for by him, unless I've said up front I'm paying for some part of it. And good, interesting conversation is essential. And an upbeat attitude and good sense of humor. Also, my date should be polite and do things like open doors for me, compliment me, and generally be a gentleman.
I'm really, really ultra-picky about who I date, though: My husband.
I don't think I'd personally be offended if some guy I was hanging out with / went out with / whatever thought it was a "date date" and I didn't. Who cares if he expects or wants sex? That doesn't mean it's going to happen. Dating is not a sex vending machine.