I followed the instructions on the documentation and created this code:
<p>Your Name (required)<br />
[text* your-name akismet:author] </p>
<p>Your Email (required)<br />
[email* your-email akismet:author_email] </p>
<p>Subject<br />
[text your-subject] </p>
<p>Your Message<br />
[textarea your-message] </p>
<p>[acceptance acceptance-936] By checking this, you agree to our super-short <a href="/privacy-policy/" target="_blank">privacy policy.</a></p>
<p>[submit "Send"]</p>
and I covered the contact form with the word "viagra" and it didn't catch it as spam! I have the akismet plugin working on the comments, so it should work for contact form 7...