If I view my website’s page source when I’m logged out of admin I don’t see any SEO meta tags but once I log into admin they appear in the site’s page source. Why don’t the tags display when I’m logged out and does that mean they’re not active?
Does it possibly have something to do with <?php wp_head(); ?>?
Keywords and Description have nothing to do with whether you are login or logout. You just set these param and this plugin will output the appropriate meta tag when wp_head() is called. If you have any problem, just change to default theme and check it out.
FYI: Also, if you are using any caching plugin then you need to clear the cache when modifying these parameters.