What starts the conversation?

W: I’ll just read a curious fact. Did you know that people spend less than ten minutes in the drugstore are five times more likely to make a purchase than those who spend half an hour there ?
M: I saw that article too. But I think if someone runs into a drugstore for ten minutes, it’s usually to make a specific purchase.
W. And someone who spends more time there may be just looking.
M: Exactly. Haven’t you ever gone into a store thinking that you buy something and then talk yourself out of it.
W: Yes, I have, especially when I thought I could get it for less elsewhere or I really didn’t
need it after all.
M: Exactly. But if you run into buying something specifically and have very little time, you pick it up, pay for it immediately and then leave.
W: That’s true. Maybe we should learn a lesson from that. Take your time and you’ll spend less money.
M: I doubt that it will be true in all sources though. You know, in a department store, for instance, you may see a sweater or something you never intended to buy and buy it because you’ve had time to look around.