A real world click or intentional sound would be wider than an individual sample. If you are trying to detect audio above
0 dB, try View > Show Clipping or Analyze > Find Clipping (both in Audacity Beta). Or click the menu in the track name and look at the Spectrum View. That should show areas of greater energy with a frequency scale on the vertical axis. You can also plot out Energy against Frequency for a selection at Analyze > Plot Spectrum and print a text file of the data.
You can also obtain a sample export plug-in to export a text plot of sample amplitude against time. See how to install Nyquist plug-ins.
Gale