How you want taking manual measurement from the oscilloscope?

To take manual measurements from an oscilloscope, first, ensure the probe is properly connected to the signal source and the oscilloscope is correctly calibrated. Use the vertical and horizontal controls to adjust the scale and time base for a clear view of the waveform. Measure key parameters such as amplitude, period, and frequency by referencing the grid on the display, and use the built-in cursors if available for more precise readings. Finally, record your findings for analysis or further experimentation.