The Click trigger will display a campaign when an element on your site is clicked by a shopper, such as a call to action button.
When setting up a campaign with the Click trigger, you will need to add an element selector.
To do this, you will need to visit your live site and right click to Inspect the element you wish to use.
Upon doing so, you will be presented with a portion of highlighted code.
Simply right click this highlighted section and select Copy Selector. You will then need to paste this selector into the Element Selector box.