Ok it was 20 years ago that I sold out of a London suburb, tube and mainline station so high demand, but I did one day open house and sold it that day
We both worked, we had a dog, no way was I hiding the ironing and washing floors at short notice, so it was advertised for a month, doors opened at 11am, last viewing at 3pm - all done and dusted. I think we had 25- 30 turn up
House and garden spotless. The coffee pot on - and coffee offered. The EA's blurb handouts. My own - times to walk to either station, what busses went by, how long to the nearest big shopping centres, local shops, gps, library , schools etc . Also had to hand a folder of the warranties of the white goods, double glazing etc
Those that only came for a nosey - in and out in 15 mins - no questions asked, those that were really interested stayed a while, asked about community feel etc
However the buyer was the one that did stay a good while, but didnt stop to chat , just really examined everywhere and took interest in the info pack I had made
( we did notice his car do a drive by over the same weekend at different times )
IIRC we had 6 offers put in . We needed to work to our timetable and we were moving to a different country and took the offer that wasnt on a chain and could work with us