Using this micro switch is easy. Just connect the two terminals to your circuit. When you press the flat metal lever actuator, the switch will close the circuit and when you release it, it'll open. For arcade buttons or joysticks, simply mount it in the right place and attach the actuator to the moving part. For mini robots, you can use it as a basic sensor. When using, remember not to exceed 30VDC and 250mA as it might damage the switch. Keep it away from moisture and dirt as they can affect its performance. If it gets dirty, you can use a dry cloth to gently clean it. Store it in a cool and dry place when not in use.