Things You'll Need
Instructions
Purchase the Mindstorms kit, Power Functions Remote Control and NXT Receiver Sensor either directly online or from a local retail store.
Follow the instructions to build your first robot. The kit itself will come with instructions for several robots and you can find more available online from both Lego and fellow enthusiasts.
Program your robot to receive instructions from the remote control. You will need to attach the NXT IR Receiver Sensor to your robot as covered in your Mindstorms NXT manual.