It’s extremely hard to get someone to do something (aka get someone to buy your stuff)

So at the moment a customer starts moving, once he’s in motion. Whether that’s contacting you about the product, adding it to cart or buying something, you got him in the mindset.

Keep going after that guy. But you’ve got to remember, though, a slug only remains in heat for a short period of time.

Gary Halbert, Gary Halbert: XXX, p.82