Make use of language in your ad that emphasises uniqueness. This has the dual effect of making your offer seem more valuable and making the recipient feel appreciated. Unless you make it clear that your offer isn’t open to everyone, expect to have knocks on your door. (Here’s a hint: provide them with the code to enter.) Join now and you’ll be the first to take advantage of this special offer.” There are only a few lucky people who have been invited to take advantage of this unbelievable offer. “Join now and we’ll see if you can get into our exclusive club.”