What’s a Tag?
Google Tag Manager is a tag management system that allows you to “Tag” certain events or actions on your page that can be tracked through analytics. We use these Tags to monitor what users do when they visit our site. Scrolling, clicking, copying, and watching are some of the many things we can track in order to improve our website and either change or continue to do certain things. One of the biggest advantages of these tags is how simple and reliable they are.
The Tagging:
Although the tagging is made easy thanks to google tag manager the actual tagging itself is explained well in the video below.