Down the left hand side of your window you will always see a navigation bar. This is the main tool used to find your way around and open new work areas. The default display for this is minimised, you will only see icons to represent what lists and features are available in each. Hovering your mouse over each icon displays all the menu options availabe under the section name - clicking on one will open the list / feature.
Note that only those areas of Synergist which you have access to will be displayed, so the appearance you see may differ from this.
If you prefer to see the section names as well as the icons there is an expand / collapse at the bottom of the bar next to the Companies and Settings areas. Click the arrow pointing right to show the section names.
Mouse hover will not expand these sections, you must click a section heading to see the lists and features below, but once expanded the items will remain on screen until you click another section heading name.