“Oh shucks Sandy, you’re such a card! I wasn’t going to, but since you said it was going to be delightful, I think I diddly-will sign up to your newsletter.”
… For the record, when you want to entice newsletter subscriptions for your site, tell the user (i) how often it will be sent in real terms, (ii) what will actually be in it, and (iii) as a bonus, link to an example of your newsletter so they can see what they’d be signing up to.
[...] gives a good example of what not to do when offering a newsletter [...]