Connect two wires with P1 and P2. If available use a power supply unit with current limiting (50 or 100mA). If you don’t have one and you are sure that you don’t have not produced any short-circuits, you can also use rechargeable batteries
To attach the ground clamp of the probe without producing short-circuits i recommend to remove a little bit of isolation from the minus wire to the voltage supply. So you can use any alligator clip.
Connect Pin 2 and 3 of the socket with a 1k resistor. This activates the integrated testprogram.
Set the oscilloscope to 1ms/div.
After you have connected the power supply unit at the gate pads of the MOSFET’s you should see the square wave signals shown in the picture below.