Apply distortion to the amplifier by turning the volume knob counterclockwise until it is off, then turning the gain knob clockwise to the 8 o'clock position. Gradually increase the volume while playing until you have an appropriate amount of distortion.
Find heavier strings for your guitar. The heavier strings will help provide a sound that is more similar to an acoustic guitar.
Adjust the tone knobs on the guitar to the highest setting, then slowly turn the knobs down until the treble sound is dissipated. Listen carefully to the change in sound and stop when you get a sound that is similar to an acoustic guitar.