When in doubt, lie. An honest salesman isn't, except when it suits his needs. Flattery will get you everywhere. Make sure YOU are the reason why. Once you have their domain name, never give it back.
Clones are bad news.
Particularly if it's a cloned Klingon. Religion's sole contribution is the offering plate and only if you have access to it. If you feel generous you might be coming down with something. Customers were invented to be taken advantage of. Once you have a customer's money make sure you get everything else he owns.