Fill the sink with cold water. If you don't have access to a sink, use a large bowl. Add the herbs and swish them around with your hand. Lift the herbs up and out of the water. Drain the water from the sink. Rinse out any dirt or grit, refill the sink with fresh cold water and repeat.
Put the cleaned herbs in a colander over a bowl or over the sink. Shake the colander so the water drains off the herbs.
Remove the herbs from the colander. Line them up on a cutting board so the stems are all facing the same direction. Cut 1 inch off the bottom of the stems. Fill a glass with ice water. Put the stems in the ice water. This process tones the herbs the same way putting a limp celery stalk in a glass of ice water makes it crisp again.