Casual sex and romance do not mix
I like sex. I like romance. And I like sex with romance, and romance with sex. But when I'm picking someone up in an explicit casual sex arrangement, i don't like or want romance. It freaks me out. It makes me think that he's not thinking about things being quite so casual.
If you're doing the personal ad thing for serious dating, by all means, bring flowers to the first date, wine her, dine her, or what have you. Though, to be fair, I should warn you that if you come on too strong too early, that's not going to be good for you, either.
In the context of casual play, though, none of that should come in, especially not early. You may have an ongoing thing in which it eventually makes sense to have a bit of light romance, but that's not a good place to start.
