Jentil, by default, ships with one menu location, named Primary menu, which is displayed in the theme’s header.
You may create a menu (under ‘Appearance‘ -> ‘Menus‘), add items to this menu, and set the ‘Display location‘ to Primary menu.
You may also add menus to sidebars by visiting ‘Appearance‘ -> ‘Widgets‘, dragging the Navigation menu widget to any of the widget areas, selecting the menu to show, and saving the widget.
If a parent menu item links to any URL other than
#, then clicking the menu item will follow the link (ie, open the URL rather than opening the sub-menu).
All parent menu items always have a sub-menu toggle button next to the link. Clicking this sub-menu toggle button will always open the sub-menu.