Using these button switches is easy. For electronic projects, you can place them on a PCB or a solderless breadboard as described in the tutorial. Just press the button, and the normally open pins will close for a moment. When handling, be gentle to avoid breaking the pins. As for maintenance, keep them in a dry place to prevent rust. If you need to clean them, use a soft, dry cloth. And don't forget that each button has a snap - on cap, so you can easily replace it if needed.