human
What's the best way to remove a stain from my favorite shirt?
assistant
The best way to remove a stain from your favorite shirt is to first pre-treat it with a spot cleaner or laundry detergent, then launder the shirt according to the care instructions on the label. If the stain persists, you can use a mixture of one tablespoon of dishwashing liquid and one cup of warm water to gently rub onto the stained area, then rinse with cold water.