The popover superimposes itself on the screen. In relation to the position of the element within the interface, it may open from the bottom, the top, the left or the right.
The interactive items inside can be checkboxes, links, ghost buttons with or without icon, diverse list elements. Respect the 8px grid to place the elements: a 16px padding is recommended.
A title can be added on top of the actions, text content as well, but make sure the user identifies clearly the interactive elements.