There are several ways to right-click on a Mac:

• Use the trackpad by clicking with two fingers simultaneously.
• Hold the Control key on the keyboard and click with one finger on the trackpad or mouse.
• If using an Apple Magic Mouse, enable the secondary click in System Settings > Mouse, then click the right side of the mouse.
• On Mac's System Settings, under Trackpad, you can set the secondary click to happen by clicking in a specific corner or by two-finger tap.

These methods allow accessing contextual menus just like a right-click on Windows.