1. Assume a condescending air that suggests your personal opinions are backed by the full faith and credit of God. Employ terms such as "ridiculous" or "trivial" in a manner that suggests they have the full force of the science community.
2. Reinforce the popular misconception that certain subjects are inherently unscientific.
3. Arrange to have your message echoed by persons of authority.
4. Avoid examining the actual evidence. This allows you to exclaim, "I have seen absolutely no evidence to support such ridiculous claims!"
5. Insist that the subject device is easily explained by conventional science so there’s no mystery there.
6. Since John Q Public doesn’t appreciate the distinction between evidence and proof, do your best to obscure the difference.
7. Use the tried-and-true skeptics expression, “Extraordinary claims require extraordinary evidence,” as much as possible.