There is no better way to learn robotics than building your own robots. RobotGeek has shared a project that shows you how to build your own Arduino Robot Arm Bartender. As you can see in this GIF, it can pour your drinks automatically.
You are going to need a RobotGeek pumping station, snapper arm, spout kit, mega workbench, and a few other parts to get started. More information is available on Instructables.