How do you handle being turned down?

[Garrick Solberg]

I'm starting to speak with various FSBO seller on Craig's list. I haven't found any properties that would bring in positive cash flow yet, but it's fun to fish anyway. Generally I have explained to them the price that I would be willing to purchase it at and still be able to cashflow. Everyone has turned me down so far, which is fine. My question is, what do you find is the best response to a rejected offer? Should I tell them that the offer (not on paper, just in discussion) is still standing, or pressure them by saying it has a deadline? Should I just be casual and say "keep my info if you change your mind"? Most of these people think I'm insane when I use the 2% rule, hehe, so they may not ever want to call me.