Adding meta tags to your webpage can be done either by manually editing the HTML code or utilizing a CMS plugin. If you opt for manual editing, open your webpage's HTML file in a text editor, locate the section, and insert meta tags using the element with attributes like name, content, charset, etc. Save the file after adding the meta tags.
Alternatively, if your website is built on a CMS like WordPress or Joomla, install an SEO plugin such as Yoast SEO or SEO Ultimate. Access the plugin settings in your CMS dashboard, where you can input information for meta tags like title, description, and keywords. The plugin will then handle the insertion of meta tags into your webpage's HTML automatically.