You can enter the tags directly into your content. However, to save time typing and remembering what the exact syntax is, the Pro version of Snippets comes with a handy editor button.

With the default editor in Joomla, the editor buttons are located in the top toolbar. If you're using another editor, such as JCE, the buttons may be located below the text input area.

You can use this editor button to place a {snippet} tag into your article (or other editor fields).

You can customize the default tag settings in the Global Configuration Settings.