A Talk page (also known as a discussion page) is a place for contributors to calmly discuss improvements to Wikipedia pages. It is not a forum.
All Wikipedia pages, including articles and user pages alike, have a corresponding Talk page. To switch to the current page's Talk page, click on the "Talk" tab above the page's title. At the very top of the page there is always a link to your Talk page.
All content and conduct issues should be discussed at either the article's or user's Talk page before requesting dispute resolution.
You can {{ping}} specific editors whom you would like to notify of your message post. Though there is no need to ping someone when you've edited their Talk page, because the Wikimedia software automatically notifies that user.