Mobile game screen touch sensitivity

How do I…

make it happen, that when you put a coin on the screen, this is recognized as touch or tap.
Maybe i need to ncrease the touch screen sensitivity of a mobile device - if possible.
But is this even possible?

What is the expected result

If you put a coin on the screen, its position is recognized.

What is the actual result

The screen does not recognize it and nothing is happening.

Can you use the coin to navigate normally through your phone?


What exactly are you trying to do? Why a coin?

It’s probably the type of touchscreen your device has. You can try wrapping your coin in aluminum foil or does your country have a coin made of copper or something conductive?