Put the antistatic wrist around your right leg and connect it to the circuit ground.Place the electrodes on your chest and play with them until you get a signal. It could take some time, as the electrical connection is fluctuating. Be patient!Here is a demonstration of my electrocardiograph :An interesting thing to do is to experiment with electrode location as you will get a different signal. Professional electrocardiographs use 10 electrodes to map the signal (see the 3rd picture). On the first picture you can see my average electrode placement. This configuration works well because I essentially pick up the ventricular spike that I use for frequency measurement.Another effect that you can see is the noise caused by movements. The electrodes can pick up electric signals of your muscles. If you want a clean signal, stay still!Here is the video I've made (in French, sorry!) for my YouTube channel! Enjoy!