Things You'll Need
- Metal jar lid Small hammer
Instructions
Find a metal jar lid that has a safety button -- the kind that pops when you open the bottle for the first time. Try popping the button in and out several times. Notice the clicking sound it makes. The idea is to amplify this sound.
Hold the cap in one hand and lightly tap the bottom side with the hammer. Aim for the center of the safety button in order to push the safety button out even further than it already is.
Test your clicker. Push the safety button up and down using your thumb and forefinger.
Achieve your desired audio level by pushing the safety button further out with the hammer. Once you have found your sweet spot you can start training.