Great! The family that went through yesterday wants to see it again today!
Whatever you do.... don't let then come and go as they please and hang out forever and talk your ear off while you're helpful as can be and they get the gist of EVERYTHING that's wrong with your house and figure out how they can DO WHAT IS GREAT ABOUT YOUR HOUSE somewhere else..... with a little elbow grease, and not have to pay you for it"/
Not to mention... they'll be convinced they can do it better than you so.....
let them in to see it.
Let them make an offer.
Let them get their inspection.
Close the deal.
You aren't their best friend and you don't want them to get the feeling you're desperate.
Just some advice from someone who was trying to keep a house straight to show it with 2 little kids in the house and buyers who camped out for hours with measure tapes and then they just went and did a renovation, copying my ideas, at their crappy little house: /
Nice, eh?